a mafic rock is found to contain 3 minerals in equal proportion. two of these are olivine and amphibole. the third is most likely :
a. pyroxene
b. muscovite
c. quartz
Answers
The most likely third mineral in a mafic rock that contains equal proportions of olivine and amphibole is option a. pyroxene.
Mafic rocks are rich in magnesium (Mg) and iron (Fe) and typically contain minerals such as olivine, amphibole, and pyroxene. Olivine is a common mineral found in mafic rocks and is characterized by its greenish color. Amphibole is a group of minerals that includes minerals like hornblende and actinolite, which are also commonly found in mafic rocks.
Among the options provided, pyroxene (option a) is the most likely third mineral in this scenario. Pyroxene is another mineral commonly found in mafic rocks, alongside olivine and amphibole. It is a group of silicate minerals with a dark color and typically occurs as elongated crystals. Quartz (option c) is not typically found in mafic rocks, as it is more common in felsic rocks, which are rich in silica (SiO2). Muscovite (option b) is a mica mineral that is typically associated with felsic rocks rather than mafic rocks.
Therefore, based on the given information, the most likely third mineral in the mafic rock, in addition to olivine and amphibole, would be pyroxene.
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Related Questions
Jupiter is closer to the sun than the earth
true
false
Answers
Answer:
False
Explanation:
What is true about the culture of the Persian Empire?
Answers
Answer:
It recognized and treated all people as equals.
Explanation:
It allowed only the language and religion of the ruling class. It destroyed ancient cultures after the conquest of other regions.
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How do the reource for electricity generation differ between the top and bottom region? How do you account for thee difference?
Answers
The differences in resources for electricity generation between the top and bottom regions can be attributed to a number of factors, such as the availability of renewable resources, the availability of non-renewable resources, the cost of energy production, and the infrastructure of the grid.
To account for these differences, electricity grids are divided into sections, or regions, in order to ensure that the same resources are available to all parts of the grid.
Additionally, electricity grids also use market mechanisms, such as auctions or tendering processes, to make sure that electricity is purchased from the most cost-effective sources available. This helps to ensure that the resources used to generate electricity are allocated in a way that is cost-effective and efficient.
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How old is a rock with a half life of 5,280 years
if 1/8th of the parent material is left?
Answers
Answer:
A rock with a half-life of 5,280 years having 1/8th of the parent material left will be 15,840 years old.
Explanation:
The half-life of a material is the time needed for only half of the parent material to be left, while half has is gone, or rather has disintegrated. The half-life is used further into the falling apart of the parent material though, with the same principle being applied. Practically, from the 1/2 of the parent material being left, the half-life of it would mean 1/4 of the parent material being left, and from that 1/4, the half-life would be at 1/8 of the parent material being left, and so one, by simply dividing in two.
In this case, having a half-life of the rock of 5,280 years, we will simply need to add that amount of years on every next phase. So, the half-life is 5,280 when 1/ of the parent material is left. When 1/4 of the parent material will be left we will have an age of 10,560 years, while when only 1/8 is left, we will have 15,840 years of age for the rock.
what technology provides the only means of making continuous, direct measurements of surface conditions across the ocean?
Answers
The technology that provides the only means of making continuous, direct measurements of surface conditions across the ocean is the satellite technology.
What is satellite technology? Satellite technology refers to the use of satellites in space to provide a wide range of services and applications that are utilized on Earth. This technology has a huge range of uses, from telecommunications and TV broadcasting to navigation and earth observation. What are the advantages of satellite technology?
The advantages of satellite technology include the following:
It has the ability to communicate in remote areas where no other means of communication exist; It can be used to monitor and provide data about natural disasters such as hurricanes and tsunamis;It can be used to monitor the environment, including deforestation, water quality, and pollution;it provides the only means of making continuous, direct measurements of surface conditions across the ocean, such as sea surface temperature, sea surface height, and ocean currents.learn more about surface condition measurement technology: https://brainly.com/question/32013319
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PLEASE HELP I NEED THIS RIGHT AWAY.
which statement best describes the role of plate tectonics in changes that occur on Earth?
A. convection currents in the mantle cause mountain ranges to slowly collapse over time.
B. the movement of plates build pressure that is released during an earthquake.
C. the subduction of ocean crust cools the mantle and prevents volcanic eruptions.
D. seafloor spreading causes ocean basins to get smaller in the shower over time.
Answers
Answer:B.the movement of plates builds pressure and is released during an earthquake.
Answer:
The answer is A
Explanation:
I just did it on AP3X
Using 2-5 complete sentences, explain why many experts have decided that the Aral Sea might be beyond saving? What does this situation say about the effects that human activity can have on the planet?
Answers
The reason that experts have said that the Aral sea is beyond saving is due to the fact that it has become very dry on its surface.
The effects of human activity on the earth.What this has to say about the effects of the activities of the earth is that it leads to a depletion of the earth's resources.
The many activities of man are responsible for the climate change that is being experienced today. Also it has led to many disasters that happen in the world today.
The hotter conditions of this sea has caused the water in the sea to evaporate faster. Therefore it is beyond saving
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What country does Chile share General Carrera Lake with and is referred to as "Lake Buenos Aires?"
Answers
Answer:
Argentina
Explanation:
1. Chile shared its longest border with Argentina, so the chances are very high that it would share the lake with Argentina
2. The name "Lake Buenos Aires" has the city of Buenos Aires in the name. Buenos Aires is the capital of Argentina. This makes the chances even higher that it would be the answer.
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According to many scientists, what effect does pollution have on global temperatures?
A. Pollution causes acid rain, which leads to rising sea levels.
B. Chemicals in pollution end up in the oceans, causing water temperatures to rise.
C. Pollution decreases ozone, which prevents the Earth from absorbing heat from the Sun.
D. Many chemicals in pollution act like greenhouse gases, which trap heat in the atmosphere.
Please select the best answer from the choices provided
A
B
C
D _ _
`>
Answers
Answer:
I just realized that you said it must be answered before 2 but your answer is going to be D
Explanation:
Reports from the Curiosity rover showed that the escape velocity for gas molecules on the newly discovered planet is 9 km/s, and the gases present are carbon dioxide and nitrogen. Is this information enough to determine if the atmosphere of the planet is suitable for human life? Why or why not? Your answer should include the factors affecting the ability of the planet to retain an atmosphere and how temperature affects velocity.
Answers
No, the provided information is not enough to determine if the atmosphere of the planet is suitable for human life.
The escape velocity of gas molecules is only one factor in determining whether an atmosphere is suitable for human life. Other crucial factors include the composition of the atmosphere, atmospheric pressure, presence of essential gases (such as oxygen), temperature, and the ability of the planet to retain its atmosphere. Escape velocity refers to the minimum velocity required for a gas molecule to escape a planet's gravitational pull. However, it does not provide information about the overall composition and stability of the atmosphere. For an atmosphere to support human life, it would typically require a suitable combination of gases, including oxygen, to sustain respiration. Additionally, factors such as atmospheric pressure and temperature are crucial, as they affect the overall habitability of a planet. Temperature plays a significant role in determining the velocity of gas molecules. Higher temperatures generally result in higher velocities, which can increase the likelihood of gas molecules escaping the planet's gravitational pull. Therefore, the temperature conditions of the planet are important considerations when assessing the suitability of the atmosphere for human life. In conclusion, while the escape velocity of gas molecules provides some information about the potential for gas escape, it is insufficient to determine the overall suitability of the atmosphere for human life. A comprehensive analysis of various factors, including composition, pressure, temperature, and stability, is necessary to assess habitability.
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How do tropical climates differ from each other?
Answers
Answer:
Wetness and Rainfall
Explanation:
Their are three types of tropical climates (Tropical Wet,Tropical Monsoon and Tropical Wet-Dry Savanah).Each are similar but vary from Humidity and Rainfall.
1. How does mechanical weathering occur?
2. How does chemical weathering occur?
Answers
Mechanical weathering occurs by temperature and pressure changes. Chemical weathering occurs particularly when the water is slightly acidic.
this biome occupies large portions of the eastern united states, central europe, and asia. group of answer choices
Answers
The temperate deciduous forest biome occupies large portions of the eastern United States, central Europe, and Asia. This biome is characterized by four distinct seasons, moderate temperatures, and deciduous trees that lose their leaves in the fall. It is home to a variety of animals, including deer, squirrels, and birds, and provides important ecosystem services such as carbon storage and water regulation.
What is a biome?
Based on the species that live there, a place is classified as a biome. By specifying the temperature range, soil type, amount of light, and water that are unique to a location and provide niches for particular species, scientists may describe a biome.
What is an ecosystem?
An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are considered biotic factors.
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Will give brainliest
Question on picture
Answers
Answer:
The answer is Peter the great.
hope it helpsduring the past 100 years, what surface has warmed at a slower rate? A. earth's troposphere B. earth's land C. earth's oceans D. earth's stratosphere
Answers
Answer:
During the past 100 years, the surface that has warmed at a slower rate is the D. Earth's stratosphere.
Explanation:
The Earth's stratosphere is the layer of the atmosphere located above the troposphere. Unlike the troposphere, which has experienced significant warming due to greenhouse gas emissions and human activities, the stratosphere has shown a different pattern. In fact, the stratosphere has cooled over the past century rather than warming.
This cooling of the stratosphere is primarily attributed to the depletion of ozone in the stratospheric ozone layer. The release of chlorofluorocarbons (CFCs) and other ozone-depleting substances has led to the thinning of the ozone layer, resulting in a cooling effect in the stratosphere.
It is important to note that while the Earth's troposphere, land, and oceans have experienced warming over the past century, the stratosphere has exhibited a cooling trend.
Can someone plz help me with this??!!
Answers
Answer:
Top answer
Explanation:
Older mountains get eroded over time which results in them shortening and having their peaks rounded, while newer mountains have sharper peaks and are taller.
Give 4 examples of a mechanism,machine or system that had two or more simple machines working together to complete work
Answers
1) A bicycle is a prime example of multiple simple machines working together. The pedals and gears form a system of levers and wheels, with the chain acting as a pulley. When you pedal, the lever (pedal) rotates, transferring force to the wheel, which turns with the help of a combination of gears.
2) A car jack combines the principles of both a lever and a wheel and axle. It typically consists of a long lever arm attached to a small wheel or gear. When you apply force to the lever arm, the wheel rotates, exerting a lifting force on the car. By utilizing the mechanical advantage gained from the combination of these simple machines, the jack enables you to raise a heavy vehicle with relative ease.
3) A pair of scissors is a mechanism that incorporates two levers. The handles act as the levers, and the pivot point between the blades acts as the fulcrum. When you squeeze the handles, the levers pivot around the fulcrum, causing the blades to come together and cut through materials. The mechanical advantage gained from the two levers allows for efficient cutting action.
4) A wheelbarrow is a system that combines the wheel and axle with a lever. The wheel and axle make it easier to transport heavy loads by reducing friction, while the lever arm (handles) allows for effective lifting and control. As you lift the handles, the wheel and axle provide support and facilitate movement, enabling you to transport heavy objects with less effort than if you were simply carrying them.
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if you have a sedimentary rock that is mostly composed of rounded grains, what is the transport that the rock undergoes?
Answers
The transport process that a sedimentary rock composed of rounded grains undergoes is known as sediment transportation. Sediment transportation is the movement of sediment from its original location to a new deposition site, and it can occur through various agents, such as water, wind, ice, or gravity.
In the case of a sedimentary rock with rounded grains, the most likely transport agent is water. When sediments are carried by water, they undergo a process called abrasion, in which they collide with other particles and surfaces, gradually smoothing and rounding their edges. This process takes time and occurs as the sediments travel long distances, indicating that the rock has experienced significant transportation.
As the water transports the sediments, the size, shape, and density of the grains can influence their movement. Larger, denser, and more angular grains tend to settle first, while smaller, lighter, and more rounded grains are carried farther. Once the water loses its energy, the sediments are deposited, forming layers that eventually become sedimentary rocks.
In summary, a sedimentary rock composed mostly of rounded grains has likely undergone a significant amount of transport through water, with abrasion playing a crucial role in rounding the edges of the grains. The rounded grains indicate a longer transport distance, as they have had more time and opportunities to collide with other particles and surfaces, ultimately becoming smoother and more rounded in shape.
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The Code of Hammurabi was a major contribution to the development of civilization because it
Group of answer choices
established written laws
treated citizens and slaves equally
ended all physical punishment
rejected the principal of filial piety
Answers
The Code of Hammurabi, which documented existing laws for everyone to see, made a significant contribution to the advancement of civilization.
The 282 rules, often known as the Code of Hammurabi, are one of the first and most comprehensive documented legal codes from antiquity. The codes are thought to have impacted rules made by Hebrew scribes, particularly those in the Book of Exodus, and have been used as a model for establishing justice in various societies.
According to historians, the Hammurabi code is a symbol of an ancient Mesopotamian system for resolving conflicts, punishing crimes, and regulating business practices that had a significant impact on the development of the legal and judicial structures that today govern the United States and other modern societies.The ancient Babylonian monarch Hammurabi is most known for the Code of Hammurabi, which was inscribed on human-sized stone pillars that he placed throughout the towns of his domain more than 3,800 years after he came to power.The code undoubtedly favored those in positions of power and wealth, who were only forced to pay a fine if they hurt commoners. As well as favoring men over women, the code. While a husband's adultery might go unpunished, an unfaithful wife would face the death penalty. King Hammurabi of Babylon and the god Shamash are shown in a sculpture.To learn more about Hammurabi visit:https://brainly.com/question/878450
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3 powers given explicity to the federal government
Answers
The 3 powers given explicitly to the federal government
Legislative powers:Judicial powersExecutive powers:What is federal government?Generally, The federal government of the United States has a number of explicit powers granted to it by the Constitution. These powers are divided into three categories:
Legislative powers: The federal government has the power to make laws that are applicable to the entire country. This includes the power to tax, regulate commerce, and declare war.
Executive powers: The federal government has the power to carry out and enforce the laws that it makes. The President is the head of the executive branch and has the authority to execute the laws of the land.
Judicial powers: The federal government has the power to interpret and apply the laws of the land. This includes the power to hear cases and make decisions that are binding on the parties involved. The Supreme Court is the highest court in the land and has the final say on the interpretation of the Constitution and federal law.
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Summary of natural influences for rainforest.
Answers
Answer:
Throughout their existence, rainforests have been affected by natural forces like fire, drought, and storms. These events occur on a random basis and can damage large stretches of rainforest.
Width of the Atlantic Ocean In plate tectonics doctrine we assert that with the American plate moving westward and the Eurasian plate moving eastward, the North Atlantic Ocean is getting about 5 inches wider per year. Thus, when Columbus sailed for America in 1492, the Atlantic Ocean was considerably more narrow. If we say that today, Florida and Cadiz, Spain (where Columbus sailed from) are 3,000 miles apart, what distance did Columbus have to sail in 1492 to reach the New World? Give me a distance (in feet or miles) and tell me how much wider the Atlantic (at the latitude of Spain-Florida) is today than it was in 1492. Finally, write up a short summary of the multiple assumptions we are making that would skew or otherwise foul up our arithmetic?
Answers
Columbus had to sail approximately 3,000 miles to reach the New World in 1492. The width of the Atlantic Ocean at the latitude of Spain-Florida is now about 5 inches wider per year compared to 1492.
Based on the given information, the distance between Florida and Cadiz, Spain, is stated as 3,000 miles. This implies that Columbus had to sail approximately that distance to reach the New World. Additionally, it is mentioned that the Atlantic Ocean is widening at a rate of about 5 inches per year. Other assumptions that could potentially affect the accuracy of the calculations include changes in the ocean floor topography, the impact of currents and winds on the actual sailing distance, and any alterations in the latitude of Spain and Florida over time.
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SUPER EASY WILL GIVE BRAINLIEST!!
Luke summarized the causes of earthquakes with the following sentence. “Earthquakes have both natural causes like volcanoes, faults and landslides and human made causes like mining explosions, nuclear testing and tectonic plate subduction.” What needs to be corrected?
a.) Subduction is a natural cause, not human made.
b.) Volcanoes do not cause earthquakes.
c.) Faults are human made causes, not natural causes.
d.) Tectonic plate subduction does not cause earthquakes.
Answers
Answer: The answer is A. Subduction is a natural cause, not human made.
Explanation: did the test
only answer this question if your Australian <3
Answers
Answer:
Yes Im from New Zealand?
Explanation:
does that count?
Item 5
What is the stimulus shown in the photograph?
light coming from a single direction
the plant growing toward the light
the insect touching the trigger hairs
the trap closing over the insect
Two images, one showing an open Venus flytrap and the other showing Venus flytrap with an insect captured in its jaws
Answers
Answer: B
Explanation: im not really sure sorry if wrong
Answer:
d
Explanation:
How does a groin structure change the pattern of deposition along a shoreline
Answers
A groin is a structure that is constructed perpendicular to the beach to alter the pattern of deposition along a shoreline. It is a long and narrow structure that is made up of hard materials such as concrete, rocks, or wooden pilings.
The groin is placed in a location where there is a possibility of longshore drift. Longshore drift is the movement of sediment parallel to the shoreline due to the action of waves.When waves approach a shoreline at an angle, they carry sand and other sediments with them. As the wave reaches the beach, it loses energy, and sediments settle.
The other side of the groin is deprived of sediments, which leads to erosion of the beach. This can lead to the need to build another groin.Over time, the groins accumulate sediment and become a part of the beach. This process creates a series of pockets of sand, or “pocket beaches,” which are the result of the natural accumulation of sediment in areas protected by groins, jetties, and other shoreline structures.
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The sea is the largest inland body of water in the world
Answers
Answer:
The Caspian Sea
Explanation:
It is the World's largest inland body of water that covers 143,200 square miles and it borders 5 countries.
Answer:
The Caspian Sea
Explanation:
The Caspian Sea Is the largest inland body of water in the world, In the continent of asia, the type of fish that reside there are: Caspian kutum, Wels catfish, Sterlet, Squalius cephalus, ECT.
A good unit to masher the distance between planets would be?
Answers
Answer:
Astronomical Unit
Explanation:
For distances within our solar system, or other solar systems, the common unit is the 'Astronomical Unit' (A.U.) 2. For most everything else, stars, galaxies etc..., the distance unit is the parsec (pc).
.
Twenty three (23) individual events lead to the formation of the following geologic section. Note the following: - Events may include any or all of the following: deposition; metamorphism; erosion; folding; faulting; intrusion; - Letters A-O identify individual rock units but DO NOT imply any chronologic order; - Units C, F, J and M are metamorphic; units B, E and I are igneous; all other units are sedimentary; - Regular, undulating (wavy) lines represent unconformable contacts. D K A B H M E Complete the following in your answer book: a) List in chronologic order (oldest to youngest) all twenty three (23) events resulting in the formation of the section; b) How many individual cross-cutting events are represented?; c) Name the types, in chronologic order (oldest to youngest), of all unconformities in the section; d) Name the types, in chronologic order (oldest to youngest), of all faults in the section. EXCOORWE
Answers
a) The 23 events in chronological order resulting in the formation of the given geologic section are Deposition of unit A. Deposition of unit C. Intrusion of unit B. Deposition of unit D. Folding of units A through E. Faulting of unit E. Deposition of unit F. Metamorphism of units A, B, and C. Folding of units F through K. Deposition of unit J. Metamorphism of unit D. Folding of units J through M. Faulting of unit M. Deposition of team N. Faulting of unit N. Deposition of unit O. Erosion of units A through E. Deposition of unit P. Faulting of unit P. Deposition of unit Q. Unconformity. Unconformity.
b) Four (4) individual cross-cutting events are represented. These are: Folding of units F through K. Folding of units J through M. Faulting of unit M . Faulting of unit N. c) Two types of unconformities are present in the section. In chronological order, they are Angular unconformity. Angular unconformity. d) Two types of faults are present in the section. In chronological order, they are Normal faulting. Reverse fault.
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exploratory research is usually associated with _______ data-gathering techniques.
Answers
exploratory research is usually associated with Qualitative Research Techniques and data-gathering techniques.
Observations: Write down in-depth field notes on what you have observed, heard, or come across. Interviews: one-on-one talks in which questions are directly asked of participants. Focus groups: a forum for discussion and question-and-answer sessions.
An effective classification divides qualitative techniques into five categories: case study, phenomenology, grounded theory, ethnography, and storytelling. There are generally six different methodologies used in qualitative research.
There are many common sorts, including phone calls, emails, focus groups, surveys, customer service issues, consumer feedback, and observation notes. When it gets back to you, this data may be incredibly large. You can organize, process, and analyze data for useful information with the aid of qualitative data analysis tools.
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