What happens to existing oceanic crust as magma extrudes and solidifies at an oceanic ridge?
A) The crust melts because of the intense pressures at the volcanically active zone.
B) The crust breaks in half and moves away from the ridge.
C) The crust crumples as it encounters resistant, older and cooler rocks on either side of the ridge.
Answers
New oceanic crust forms at oceanic ridges as magma extrudes and solidifies. The correct option is B.
The process of creating new oceanic crust at an oceanic ridge involves the extrusion and solidification of magma. As magma rises up to the surface at the ridge, it cools and solidifies, adding new material to the oceanic crust. The existing oceanic crust is continuously moving away from the ridge due to the process of seafloor spreading.
As the new magma extrudes and solidifies at the ridge, it pushes the existing crust on either side of the ridge apart. This creates a gap or rift that is filled with the newly formed crust. This process of seafloor spreading and the creation of new crust is a fundamental process of plate tectonics.
The existing oceanic crust does not melt or crumple as new crust is formed. Instead, it is pushed further away from the ridge and eventually subducts beneath a continental plate or another oceanic plate at a subduction zone. At subduction zones, the oceanic crust is forced down into the mantle, where it melts and becomes magma once again, completing the cycle of plate tectonics.
In summary, the process of creating new oceanic crust at an oceanic ridge involves the extrusion and solidification of magma, which adds new material to the existing crust. The existing crust is continuously moving away from the ridge due to seafloor spreading and eventually subducts at a subduction zone. Therefore the correct option is B.
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Related Questions
calculate the total number of years that each geological eras lasted, rounding to the neareast 100 million, Then, calculate each of these values as a percentage of the total 4.6 billion years of Earth History. Round your answer to the units place.
Answers
Explanation:
Cenozoic = 100 mil years (rounded) = 66 real
Mesozoic = 200 mil years (rounded) = 174 real
Paleozoic = 300 mil years (rounded) = 330 real
Cenozoic = 100mil/4.6bil = .0217 (x100 for percentage) = 2%
Mesozoic = 200mil/4.6bil = .0435 (x100 for percentage) = 4%
Paleozoic = 300mil/4.6bil = .0652 (x100 for percentage) = 7%
19. Which of the following is an example of an improvement in an indicator of human
development?
O decrease in years in school
O decrease in gross national product per carita
O increase in the death rate
O increase in life expectancy
Answers
An increase in life expectancy is an example of an improvement in an indicator of human development. Thus, option D is correct.
What is human development?Human development can be defined as the process in which freedom, as well as benefits, are increasing in human life. it is a summary of the average dimensional perspective for human life in human development. It is also related to the life and death of the people at the quality of life they are living.
If there is an increase in the life expectancy rate, that suggests that people are living for a longer period of time. This suggests that there is better quality and greater unity in their lives.
This is an indicator of human development, and the fact that there will be growth in the near future to stop this is a positive point for the country.
Therefore, option D is the correct option.
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How often do orcas need to breathe?
Answers
Answer:
they need to take 3 to 7 breaths every 5 minutes
Explanation:
What are the number indicating the lines of latitude and longitude that across each other at a place are called what
Answers
The lines of latitude and longitude that intersect each other at a specific location are called coordinates or geographic coordinates.
Coordinates are numerical values that represent the lines of latitude and longitude intersecting at a particular location on the Earth's surface. The lines of latitude run horizontally and measure the distance north or south of the Equator, while the lines of longitude run vertically and measure the distance east or west of the Prime Meridian.
When these lines intersect at a specific point, they form a set of coordinates that uniquely identify that location on the Earth. For example, the coordinates for New York City are approximately 40.7128° N (latitude) and 74.0060° W (longitude). These coordinates help in precisely determining the position of a place on the Earth's surface.
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ANSWER ALL QUESTION PLEASE ASAP
Answers
Answer:
mouth
Explanation:
i did the quiz
Hi, I'm currently failing World Geography, so I'm asking fo answers to a whole exam. I can't find none of the individual answers on here so yeah, I have until friday topass and I'm scared I'm gonna fail, so I hope somebody from the same class knows how to do it.
---
1. In Morocco, workers
fish the Atlantic Ocean.
raise fruits and vegetables.
provide services for
tourists.
all of the above
2.
Why has the level of the Dead Sea dropped more than 262 feet 80 m)?
The "great man-made river" had depleted the sea's aquifers.
It has been diverted for irrigation and hydroelectric plants
People have used the water for irrigation and drinking for centuries.
The evaporation rate is higher than the amount of rainfall.
3.
The "great man-made river," desalination project, and the Aswan High Dam all show
attempts to deal with the region's water needs.
the Nabataean' technological ingenuity.
the gradual move toward technology and industry.
cooperation between Palestinian and Israeli scientists.
4.
Most of the people of North Africa, Southwest Asia, and Central Asia live
in the highlands of Iran, Iraq, and Kuwait.
above the Aswan High Dam.
near the Caspian Sea.
near an ocean, sea, or river.
5.
Bedouins graze their livestock
as flash floods supply irrigation.
in the Rub' al Khali.
in the steppe regions.
near Morocco's Mediterranean shores.
6.
Which of the following are common languages of this region?
Russian, Hindi, Turkish, and Armenian
Hebrew, Berber, Arabic, and Kurdish
Farsi, Arabic, Berber, and Sanskrit
all of the above
7.
The _____ is the Islamic holy book.
Makkah
New Testament
Torah
Quran
8.
Which statements about the Caspian Sea are accurate? I. It is the largest inland body of water in the world. II. It laps the shores of both Europe and Asia. III. It is so badly polluted that it looks gray
II and III
I, II, and III
I and II
I and III
9.
Kazakhstan's environmental problem is the result of
ethnic differences.
sinking water levels on an inland sea.
environmental damage caused by drifting pollutants.
pollution created by policies of the Soviet Union.
10.
Which of the following is not an accomplishment of the Sumerians?
domesticating animals.
building ziggurats.
creating a code of law.
developing desalination methods.
11.
Petrochemicals
have been banned in Kazakhstan.
clean up oil spills.
are used to produce medicines, fertilizers, and plastics.
contribute little to the economy of the region.
12.
The Persian empire extended from
the Nile River to the Amu Darya.
the Red Sea to the Euphrates River.
the Nile River to the Tigris River.
the Read Sea to the Tigris River.
13.
The Tigris and Euphrates Rivers
run through ancient Mesopotamia.
irrigated the Fertile Crescent.
are the two longest rivers in the region.
all of the above.
14.
Israelis and Palestinians
reached a lasting peace agreement in 1999.
are fighting over ancestral holy lands.
have both lived in the region since about A.D. 100.
all of the above.
15.
Muslim religious traditions include
the Torah.
Hanukkah and the Quran.
facing Jerulsalem and praying seven time each day.
Ramadan and the hajj.
16.
What group came to power in Afghanistan during the 1990s?
the Kurds
the Saudis
the Berbers
the Taliban
17.
The standard of living in North Africa, Central Asia, and Southwest Asia
ranges from rural poverty in Egypt to urban wealth in Saudi Arabia.
is highest for people living near the Tian Shan.
is generally good except for people living near the Sahara.
ranges from rural poverty in Kuwait to urban wealth in North Africa.
18.
Some 50 percent of the people in Israel
immigrated there to escape the Holocaust.
are Muslims.
are Jewish.
immigrated there to live in the Jewish homeland.
19.
The GDP of the region's wealthiest countries is based on
agriculture.
petroleum and oil products.
industry and mining.
petrochemical production.
20.
The Kurds live without a homeland
on the borders of Turkmenistan and the shores of the Black Sea.
in border areas of Turkey, Iraq, Iran, Armenia, and Syria.
on the Arabian Peninsula.
all of the above
Answers
Answer:
20 questions wow I'm sorry i cant do that I'm just in 7th
Explanation:
you ccan do it
you got this
Explanation:
hope that helped :P
In the Northern Hemisphere, the water surface of the open ocean moves 45° to the right of the wind. T/F
Answers
No, the above statement is false. In the Northern Hemisphere, the water surface of the open ocean moves approximately 45° to the right of the wind.
This phenomenon is known as the Ekman transport. Due to the Coriolis effect, which deflects moving objects to the right in the Northern Hemisphere, the net movement of water particles is at an angle of about 45° to the right of the wind direction. This means that the wind pushes the surface water at an angle, and the resulting movement of water is slightly to the right of the wind direction. It is important to note that this 45° angle is an average and can vary depending on factors such as wind speed and ocean depth.
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why did only wealthy do tourism before advances in transport
Answers
Answer:
Because it was they who had access to water transport, but for ordinary people it was very expensive.
Answer:
Limited access to transportation: Traveling long distances was difficult and time-consuming, and the only available modes of transport, such as horses or carriages, were expensive and not accessible to everyone. This made travel a luxury that only the wealthy could afford.
Which of the following influenced cultural change in South America, making it more of a global trade and travel destination?
?
Answers
Exploitation of natural resources and the expansion and exploitation of cultural diversity.
What is exploitation of natural resources ?Utilizing natural resources for economic gain is known as "exploitation," which occasionally carries a negative connotation of resulting environmental deterioration.
Contrary to monoculture, the global monoculture, or a homogenization of cultures, which is comparable to cultural evolution, cultural variety is the quality of various or different cultures. Different cultures respecting one another's peculiarities is another definition of "cultural diversity."
This definition of cultural variety included ways of living, value systems, customs, and beliefs as well as "the set of distinguishing spiritual, material, intellectual and emotional qualities of society or a social group."
Declaration names cultural variety as a source of creativity and innovation as well as a catalyst for both personal and economic growth. [6] To emphasize that cultural variety cannot be used to violate the rights of minorities and that cultural diversity necessitates the protection of individual liberties, UNESCO submitted a response to a UN study on human rights and cultural diversity in 2002.
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In what type of urban renewal/regeneration ( economic, social, environmental) does gentrification occur? Explain why
Answers
Answer:
Economic because people come to rise prices which leads to rich people coming and lower classes to leave
Explanation:
50 points!
Radioactive dating can be compared to an hourglass, with the elements on the top. Scientists compare in the rock to determine its age. Potassium-argon dating is ideal for dating and rock.
Answers
Answer:
I don't know what you want to know about this question can you make it a bit more understandable.
Explanation:
sooo what is
Explanation:
what do u wonder in this picture?
Answers
Answer:
!!!! 0_o well then
Explanation:
Answer:
Lot of colors in the picture that looks like it was sprayed at them.
People gathering and being close to each other.
Explanation:
I hope this helps!
1) what’s an example of a scale?
2) What do we normally call source when we do an assessment at school?
Answers
Answer:
1. scale means to climb up something or to remove in thin layer. an example of scale is rock climbing.
2.huhu
1. Scale is a ratio of map to the actual size of the body or a place. Eg. 1:10000 (here it means that what is 10,000 units of distance in real is 1 unit on map)
2. Formative assessment
the changing diameter of the moon over the course of a month is a result of
Answers
The changing diameter of the moon over the course of a month is a result of its elliptical orbit around the Earth.
Elliptical orbitAs the moon travels along its orbit, it moves closer to the Earth at some points and further away at others. This results in a variation in the apparent size of the moon as seen from Earth.
When the moon is at its closest point to Earth (called perigee), it appears larger in the sky, while at its farthest point (called apogee), it appears smaller. This cycle of changing diameter takes approximately 29.5 days to complete, which is known as a lunar month.
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What is the ultimate goal of IPM? A. to reduce the use of chemical pesticides B. to eliminate the use of chemical pesticides C. to improve the strength of chemical pesticides D. to reduce the need for irrigation
Answers
The ultimate goal of IPM is A. to reduce the use of chemical pesticides.
The term IPM stands for Integrated Pest Management. It is a method of pest control that seeks to reduce the use of chemical pesticides while still successfully eradicating pests and lessening their damage. To accomplish sustainable pest management, diverse pest control methods, such as biological, cultural, physical, and chemical ones, must be integrated. Istill allows for the use of chemical pesticides, but only when absolutely necessary.
The focus is on applying additional pest control methods before chemical ones, such as encouraging natural predators, establishing cultural practises, creating physical barriers, and keeping an eye on insect numbers. IPM works to lessen the total reliance on chemical pesticides by utilising a variety of techniques and taking ecological, economic, and social considerations into account, resulting in more sustainable and ecologically friendly pest management practises.
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The activities of a shipping center related to sorting and redistributing cargo
Answers
The activities of a shipping center related to sorting and redistributing cargo is called break-of-bulk.
A shipping center is responsible for sorting and redistributing cargo. This includes receiving cargo from various sources, inspecting the cargo for any damages, and loading the cargo onto the appropriate vehicles. Once the cargo is loaded, it is sorted according to its destination and redistributed accordingly.
The shipping center also ensures that all cargo is properly documented, labeled, and tracked. The staff at the shipping center must also ensure that all cargo is handled with care and that all safety protocols are followed. Finally, the shipping center is responsible for ensuring that all cargo is delivered to its destination in a timely and efficient manner.
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Name the massive size star with a temperature of
approximately 9000 K.
Answers
Explanation:
A massive size star with a temperature of approximately 9000 k is called Carinae A
which of the following are rays on line c?
Answers
How does Kipling portray the subjects of colonial rule? How does he portray their rulers?
Answers
Kipling's portrayal refers to the way in which the author, Rudyard Kipling, presents and represents characters, themes, or ideas in his literary works, often reflecting his own perspectives, biases, and artistic choices.
Kipling's portrayal of the subjects of colonial rule reflects the prevailing attitudes of the time, characterized by a sense of superiority and paternalism. He often depicts them as passive, grateful recipients of the civilizing influence brought by their colonial rulers. They are portrayed as exotic and enigmatic, with an emphasis on their customs, traditions, and perceived backwardness.On the other hand, Kipling's portrayal of colonial rulers tends to be more sympathetic and glorified. He portrays them as heroic figures, driven by a sense of duty and a mission to bring order and progress to the colonies. They are often depicted as wise, honorable, and authoritative figures, fulfilling their role as benevolent overseers.
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solve the problem. the local magnitude ml (on the richter scale) of an earthquake of intensity i is given by ml
Answers
The statement provided is incomplete, making it difficult to provide a direct answer. However, based on the information given, the formula to calculate the local magnitude (ml) on the Richter scale for an earthquake of intensity (i) is missing. Without the complete equation or additional information, it is not possible to solve the problem or provide a more detailed explanation.
The local magnitude (ml) of an earthquake on the Richter scale is typically calculated using a logarithmic scale based on the amplitude of seismic waves recorded by seismographs. However, the statement does not provide the specific formula or equation necessary to determine the relationship between intensity (i) and magnitude (ml).
To accurately calculate the magnitude of an earthquake, additional information is needed, such as the specific equation relating intensity and magnitude or the values of the parameters involved. It's important to note that the Richter scale is just one of several magnitude scales used to measure earthquakes, and different scales may have different formulas or calculations.
To solve the problem or provide a more comprehensive explanation, it would be helpful to have the complete equation or additional context related to the intensity (i) and magnitude (ml) of earthquakes in question.
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mount rainier is a volcano located in the cascade range of washington state. if it were to erupt, it would create a significant threat to people living south of seattle. below is a hazard map made by the united states geological survey. it is colored to show which areas might be impacted by different volcanic hazards. use the map and its key to answer the following questions.
Answers
Debris flows, lahars, lava flows, and pyroclastic flows from Mount Rainier could have an impact on the areas depicted on the map today if they were of the same magnitude as in the past.
The majority of lahars would be smaller than the hazard zone depicted on the map, whereas a few would be larger due to the greater prevalence of small lahars. The lahar danger isn't equivalent in all valleys. For instance, the west side of the volcano presents the greatest threat from lahars caused by landslides because it contains the most hydrothermally weakened rock. Researchers keep on reexamining the danger zones as they look further into the fountain of liquid magma. If a lahar displaced reservoir water and caused dam failure, dams and reservoirs on several rivers could reduce the extent of future lahars by trapping all or much of the flow. However, they could also increase the extent of a lahar. Because it is part of the lahar hazard zone in other valleys, only the Green and Duwamish River valleys contain a zone of flooding and post-lahar sedimentation. Urban areas are indicated by the dark gray shading.
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The tallest volcanic peak in the contiguous United States is Mount Rainier, which rises to a height of 14,410 feet. It features the world's biggest volcanic glacier.
cave system and the largest alpine glacial system outside of Alaska (in the summit crater). The snowiest spot on Earth, if not the snowiest, is Mount Rainier in Washington. According to statistics compiled over the last century, the area around Rainier's Paradise has an average yearly snowfall of approximately 640 inches, or more than 53 feet. 59 miles south-southeast of Seattle, in Mount Rainier National Park, lies Mount Rainier, a large active strato volcano also known by its native names of Tahoma, Tacoma, and Tacobet.
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Which of the following does NOT describe one of the three roots of Western European culture that developed in the Middle Ages
Answers
Answer:
Wut is the following...
Explanation:
have a nice day!
what will help Africa develop their natural resources
Answers
An area that is drained by a river system is called its _________for part a watershed drainage source wetland habitat
Answers
An area that is drained by a river system is called its basin part a watersheds drainage source wetland habitat.
A watershed is an area of land that directs all streams and rainfall to a common outlet. At the outlet of a reservoir, the mouth of a bay, or any point along a river.
A catchment or catchment area is the area drained by a river and its tributaries. The edge of a watershed is called a watershed. This can be compared to a sink or a sink that catches falling water.
River systems are also known as basins or watersheds. A river watershed includes a river, all its tributaries, and all groundwater resources within the area.
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Jameson lives in a city on the shores of the Atlantic Ocean. The temperature fluctuations are relatively small in his city because(blank)takes longer to heat up and cool down due to its high(blank) . First blank choices are: water, land, air Second blank choices are :volume, density, specific heat
Answers
Hey there! I'm happy to help!
We are looking for something that takes a long time to heat up due to a certain property, therefore affecting the weather.
FIRST BLANK CHOICE
The temperature of the land is a result, of the weather, not a cause, so this is not the correct option.
The temperature of the water does not really affect the weather. If the water in your city is cold instead of hot that will not cause the weather to be much different.
However, air is what mainly causes the weather. Air pressure fluctuations can cause certain storms and air is the driving factor of weather. Therefore, the first answer is air.
SECOND BLANK CHOICE
One of the options is specific heat. The actual fill in the blank is that is is harder for the air to heat up because of _______. Putting heat in there makes no sense. It's harder for the air to heat up because of specific heat? This is not the right choice.
The volume of the air is how much space it takes up, and air is basically everywhere, so this is not the correct choice.
The last option is density, or how thick the air is, usually due to how much water there is. This makes sense because if it is very thick you have to have more heat to get through all of the density. It would take longer to warm up a car filled with 20 people than with one person. Therefore, the second option is density.
Have a wonderful day! :D
Answer:
I believe it could be (water & specific heat) let me know if this is correct pls:)
Imagine you could dig a tunnel all the way to the center of the earth. what would happen to the gravitational potential energy of a system formed by the earth and some object, as the object approached the center of the earth?
Answers
If you could dig a tunnel to the center of the Earth, the gravitational potential energy of a system formed by the Earth and some object would be at a minimum as the object approached the center of the Earth.
What is gravitational potential energy?It corresponds to an energy that can be transformed into kinetic and electrical energy. It is the type of energy that exists in a object due to its position in relation to an object with gravitational force on the same object, like the earth in this case.
Therefore, in this case, the object would have greater kinetic energy due to velocity, due to acceleration relative to gravity, but this situation is impossible, because in the center of the earth there are strong temperatures and pressures.
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is being given the right to vote an example of a human right?
Answers
Answer:
No
Explanation:
I think not because if we don't vote, they pick a ruler for us, so we don't argue and fight over who we want to be in office.
Look at the image
and
create a caption or story that goes
along with it, just like you would
see
in a comic book. It will be helpful to
look at the entire assignment first, so
that you have an idea of what this is
all about.
Answers
Answer:
Time of change in the sahara desert of south africa.
Explanation:
Which one?
A. B. C. or D?
Answers
Answer:
um im pretty sure D
Explanation:
Describe how producers, consumers, and decomposers are linked in a food chain or food web? PLSSSSSSSSSSSSSSSSSSS HELP I RLLLLLLLLLLLLLLY NEEEEEED EM ANSWERS ITS LITERALY 15 POINTTTTTTSSS