Our Milky Way galaxy is composed of a vast array of astronomical objects, including stars, planets, gas clouds, and black holes, and most of the mass of the Milky Way is concentrated in its dark matter halo, a vast region of invisible material that surrounds and permeates the galaxy.
Dark matter is a mysterious substance that does not interact with light or other forms of radiation, making it difficult to study directly. Nevertheless, scientists have been able to infer its existence through its gravitational effects on visible matter.
In fact, recent estimates suggest that dark matter makes up about 85% of the total mass of the Milky Way, with ordinary matter (such as stars and gas) accounting for the remaining 15%. This underscores the fact that there is much more to the Milky Way than meets the eye, and that our understanding of the universe is still evolving as we continue to explore and study its many mysteries.
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Where do people consume the most energy from fossil fuels?
Answer:China
Explanation:
Which river serves as part of the eastern border of israel?
Britain had the right to "postpone or withhold" the application of the clauses pertaining to the "Jewish National Home" in the region east of the Jordan River, formerly known as Transjordan. border of israel.
The State of Israel's current borders were established through a combination of diplomatic agreements and previous battles with both its neighbours and former colonial powers. The majority of Israel's border disputes are based on territorial changes that occurred as a result of the 1967 Arab-Israeli War, which saw Israel occupy large swathes of territory from its rivals. Of Israel's five total potential land borders, only two are recognised by the international community and remain uncontested. Since the 1979 Egypt-Israel peace treaty and the 1994 Israel-Jordan peace treaty, respectively, Israel has two officially acknowledged and confirmed borders with Egypt and Jordan, whereas its borders with Syria (via the Israeli-occupied Golan Heights), Lebanon (via the Blue Line; see Shebaa Farms), and Palestine (via the Green Line) are less clear.
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Some pollution, such as runoff, comes from many sources. Is this point source pollution or nonpoint source pollution?
Answer:
nonpoint
Explanation:
it doesn't come from any specific 'point'
Fully Factorise 7c^2+11c
Question: 7c^2+11c
Answer: Take the common,
= c(7c+11)
hope it helps
Good luck on your assignment
North America and Asia are moving toward each other at a rate of about one inch per year. Why are the continents moving so slowly?
only part of the constellation Ursa Major is circumpolar. What
is the common name given to that part which mostly remains as
circumpolar?
Answer:
That part is commonly known as the Big Dipper or the Plough.
Explanation:
An example of how the climate influences a tropical biome is by the-
a. the amount of precipitation that falls
b. deciduous forests that grow there
c. well-defined growing season
d. small mammals found there
Answer:
a.
Explanation:
climate is how a place is mostly year round so most likey forest are rainy year round so it makes most sense that rain would be the abswer
Which layers of the atmosphere are examples of temperature inversions?.
Answer: stratosphere
Explanation:
The stratosphere is characterized by a strong temperature inversion, as shown by the above figure.
This is a stable layer with little mixing. As a result, pollutants and other particles may reside in the stratosphere for many years.
what conditions are needed for the development of karst topography? select one: a. humid climate b. arid climate c. carbonate bedrock at a shallow depth d. humid climate and carbonate bedrock at a shallow depth e. all of these
All of these conditions are necessary for the development of karst topography.
All the options are correct.
Karst topography is a type of landscape formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by sinkholes, caves, and underground drainage systems. In order for karst topography to form, a combination of conditions is needed, including a humid climate and carbonate bedrock at a shallow depth.
The humid climate causes water to be in contact with the bedrock for long periods of time, which allows for the dissolution of the bedrock. The shallow depth allows for the dissolution products to be transported away more easily, resulting in surface features such as sinkholes and caves. Additionally, the presence of fractures and joints in the bedrock can provide pathways for the groundwater to travel, allowing for more efficient dissolution. All of these conditions are necessary for the development of karst topography.
All the options are correct.
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Explain how development in tropical rainforests creates economic advantages but at a cost to the environment. (6 marks)
Answer:
The short-term benefits of clearing rainforest areas include: land for agriculture, houses and roads. jobs for local workers in road building, logging, agriculture, mining and construction. the generation of income (often in valuable foreign currency) for the LEDC when wood, minerals, and other resources are sold.The rainforest provides many resources to support economic development. If it is not available for future generations then this development will be limited; Tropical rainforests help reduce global warming through CO2 being absorbed.
Explanation:
Tropical rainforest is a sub-part of the terrestrial ecosystem.
The Tropical Rainforest is a forest which occurs in a typically tropical areas which experiences heavy rainfall regularly.The forest is the biome for several animal, aquatic life and various plants and trees.In conclusion, resources gotten from the Rain-forest such wood, planks and other minerals creates generation of income for an economy and it is as the cost of the environment because they are depleted without be replaced appropriately.
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∠ A y \ ángulo B∠ Bson ángulos complementarios. Si m\ ángulo A = (x + 16) ^ {\ circ}∠ A=( x+1 6 ) ∘ y M\ angle B = (x-12) ^ {\ circ}∠ B=( x-1 2 ) ∘ , luego encuentre la medida de \ ángulo A∠ A.
Answer:
Wrong subject
Explanation:
Kindly repost this question in math's section.
The lower the viscosity of a lava the more likely it is to produce an ________ eruption
The lower the viscosity of a lava, the more likely it is to produce an "effusive" eruption.
Viscosity refers to the resistance of a substance, such as lava, to flow. In the context of volcanic eruptions, lava viscosity plays a significant role in determining the eruptive style. When lava has low viscosity, it flows more easily, allowing gases to escape more readily and resulting in a relatively gentle eruption characterized by the effusion of lava flows.
Effusive eruptions are typically characterized by the slow and steady movement of lava, often forming extensive lava flows that spread over the surrounding area. The low viscosity of the lava allows it to flow smoothly and cover greater distances before solidifying. These eruptions are generally less explosive and pose a lower risk to human populations compared to highly viscous, explosive eruptions.
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The direction and frequency of hunter-gatherer migration depended on
A) the movement of game and the seasonal growth of plants.
B) the shifting of climate patterns.
C) the arrival of imperial armies and other invading forces.
D) each group's size and the ability to run over long distances.
E) mathematical processes.
what is tydal waves?
what are the basic requirements for a terrestrial world to have a global magnetic field? group of answer choices a metal core and rapid rotation a metal core, a rocky mantle, and sufficiently rapid rotation a core that has a molten layer and a mantle that has convection a core layer of molten, convecting material and sufficiently rapid rotation
A terrestrial world requires a molten core with convecting material and sufficiently rapid rotation to have a global magnetic field(d).
A global magnetic field on a terrestrial world is generated by the motion of molten iron in its core. The convection of this molten material creates electrical currents that, in turn, generate a magnetic field. This process requires a molten layer in the core and sufficiently rapid rotation to generate the necessary convection.
The presence of a rocky mantle is not necessary, although it may contribute to the generation and maintenance of the magnetic field. Therefore, a terrestrial world must have a molten core with convecting material and sufficient rotation to have a global magnetic field.
So d is correct option.
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Meteorological history of Hurricane Katrina
Hurricane Katrina was one of the most catastrophic and powerful hurricanes ever recorded in history. It was a category 5 hurricane that made landfall on August 29, 2005 and caused extensive damage along the Gulf Coast from Louisiana to Florida, as well as inland as far as Kentucky and Ohio.
Hurricane Katrina originated from a tropical wave on August 23, 2005. The wave was accompanied by an area of low pressure, which was followed by an area of thunderstorms. This area of low pressure developed into a tropical depression on August 24, 2005, and was upgraded to a tropical storm the following day. The storm was given the name Katrina.
As Katrina moved across the Caribbean Sea, it strengthened and eventually reached hurricane status on August 25, 2005. It then moved northwestward, making landfall near Miami, Florida on August 25, 2005. Katrina then moved across the Gulf of Mexico and made landfall on August 29, 2005 near the Louisiana-Mississippi border as a Category 5 hurricane with winds of 175 mph.
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How does physical geography and resources affect settlement patterns? (Need atleast a paragraph of answer)
Answer: Geography is often a major factor in deciding where a group of people settle. People need access to natural resources to build their homes and other infrastructure, to land that can provide food and water, and to places that are easily accessible to those who live in them.
Given a parcel of air at 40°C and absolute humidity of 35 g/m3, if saturated, what would absolute humidity be?
Explanation:
To determine the absolute humidity of a parcel of air when it is saturated, we need to calculate its maximum water vapor capacity at 40°C, also known as its saturation specific humidity.
The maximum water vapor capacity of air increases with temperature, so we need to use a formula that takes into account both temperature and pressure. One such formula is the Magnus-Tetens equation:
e = 6.112 × exp[(17.67 × T)/(T + 243.5)]
where e is the vapor pressure in hPa and T is the temperature in degrees Celsius.
Using this equation, we can calculate that at 40°C, the vapor pressure of saturated air is:
e = 6.112 × exp[(17.67 × 40)/(40 + 243.5)] = 7.958 kPa
Next, we need to convert this vapor pressure into absolute humidity using the following formula:
AH = (0.622 × e)/(P - 0.378 × e)
where AH is the absolute humidity in g/m3, P is the atmospheric pressure in kPa, and 0.622 and 0.378 are constants representing the molar mass ratio of water vapor to dry air and the ratio of the gas constants for water vapor and dry air, respectively.
Assuming a standard atmospheric pressure of 101.325 kPa, we can calculate that at 40°C and saturation, the absolute humidity of air would be:
AH = (0.622 × 7.958)/(101.325 - 0.378 × 7.958) = 51 g/m3
Therefore, if the initial parcel of air had an absolute humidity of 35 g/m3 and was heated to its saturation point at 40°C, its absolute humidity would increase to approximately 51 g/m3.
Give two reasons why there has been a growth in the number of science parks in the uk
Answer:
Science parks can contribute to the economic growth of an area by increasing the level of economic activity and the productivity of the companies once they have moved into that area. Due to the recognized positive effects of science parks, their number in the UK has increased from just 2 in 1982 to over 100 in 2014.
Why hydraulic containment is particularly important in the initial stage of the contamination and plume formation?
What conclusions (regarding source control, plume containment, and extraction) can be drawn from the study on three pumping scenarios by Faust et al. (1993)
Is this statement correct: The more the extraction wells and/or the injections wells, the better they are for the cleanup of the contaminated sites?
Hydraulic containment is particularly important in the initial stage of contamination and plume formation because it helps prevent the contamination from spreading further and causing more damage. Hydraulic containment involves creating barriers or walls to prevent the contaminated water from flowing out of the affected area.
By doing this, the contaminated water is contained in one area, making it easier to control and treat. Additionally, hydraulic containment can prevent the contamination from reaching nearby water sources, such as rivers and lakes. Conclusions drawn from the study on three pumping scenarios by Faust et al. (1993) regarding source control, plume containment, and extraction,
Source control: The study found that reducing the amount of contaminated water entering the aquifer was crucial for successful remediation. This can be achieved through various means such as waste segregation, source removal, and spill response.Plume containment: The study found that plume containment was essential for preventing the contamination from spreading further. This can be achieved by pumping water from the affected area and re-injecting it into the aquifer.
This creates a hydraulic barrier that prevents the plume from migrating.Extraction: The study found that pumping water from the affected area is an effective method of remediation, but it has its limitations. The study found that high extraction rates can lead to an increase in contaminant concentration, while low extraction rates can lead to a slow cleanup process.
The statement "The more the extraction wells and/or the injections wells, the better they are for the cleanup of the contaminated sites" is not entirely correct. While it is true that more wells can help speed up the cleanup process, there are also drawbacks to having too many wells. For example, too many wells can lead to interference between them, resulting in reduced effectiveness.
Additionally, more wells mean higher costs, which may not be feasible for some cleanup projects. Therefore, the number of wells needed for cleanup depends on the site-specific conditions and should be determined by a professional.
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Match the scientist with their contribution:
1. Made Geocentric Model of the Solar System using Epicycles
2. Made the first heliocentric model of the Solar System
3. Used large metal instruments to accurately measure the positions of the planets
4. Devised three laws of planetary motion
5. Used his universal law of gravity to explain planetary motions
1. Claudius Ptolemy - Made Geocentric Model of the Solar System using Epicycles
2. Nicolaus Copernicus - Made the first heliocentric model of the Solar System
3. Tycho Brahe - Used large metal instruments to accurately measure the positions of the planets
4. Johannes Kepler - Devised three laws of planetary motion
5. Sir Isaac Newton - Used his universal law of gravity to explain planetary motions
These scientists significantly contributed to our understanding of the Solar System. Ptolemy's Geocentric Model placed Earth at the center, while Copernicus introduced the Heliocentric Model with the Sun at the center. Brahe's accurate measurements of planetary positions helped Kepler formulate his laws of planetary motion. Newton's universal law of gravity provided a comprehensive explanation for these motions.
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What are some examples of how culture affects economics
Specific holidays like Christmas or Cinco de Mayo and Health habits like smoking or overeating are some examples of how culture affects economics i.e., option 2 and 4 are correct.
The phrase 'culture economy' refers to a subset of economic activity that is focused with cultural products and activities (such as music, movies, and fine art), as opposed to transportation or mining.
Specifically chosen holidays because if they weren't observed, companies wouldn't do well and the state would suffer as a result since they wouldn't have enough cash to pay the government. Due to the projected 35 billion dollars in annual revenue generated by smoking and individuals, the economy is also impacted. Since there are fewer smokers now and there are more rules in place, the government has been losing money.
The question is incomplete. The complete question is, "What are some examples of how culture affects economics? Check all that apply.
People watching movies at home on DVDs.Health habits like smoking or overeating.A food preference for pork over other animal meat.Specific holidays like Christmas or Cinco de Mayo"Learn more about Culture here:
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Why do urban areas experience traffic congestion
Answer:
Urban areas experience traffic congestion due to the large population of the urban area. There can be various reasons why this happens, including increased urbanization. The main cause however is the large population.
Explanation:
Analyze the drawbacks of the technologies used to overcome environmental challenges in Dubai
Answer: Both of the major technologies used to overcome environmental obstacles in Dubai require high investment of energy resources. Dubai's climate is regulated by the technologies of evaporative cooling and air conditioning. Both of these technologies rely on a significant amount of fossil fuels to produce the benefit of a more tolerable climate. Therefore, high energy costs and pollution are two drawbacks associated with these technologies. Dubai meets 90 percent of its freshwater needs through the technology of water desalination. Desalination plants also require significant energy resources to operate, creating both expense and pollution.
Explanation:
I need help on both questions.
Answer: your mum dancing in question 1
Explanation:
ur mum crying in question 2
All the following are true regarding the monsoon in India and Southeast Asia except:
A) It occurs during the summer months.
B) It brings heavy rainfall to the region.
C) It is influenced by the seasonal wind patterns.
D) It primarily affects the northern parts of the region.
The statement that is not true regarding the monsoon in India and Southeast Asia is: D) It primarily affects the northern parts of the region.
The monsoon in India and Southeast Asia is characterized by seasonal winds that bring heavy rainfall to the region. It occurs during the summer months when warm, moist air from the Indian Ocean is drawn towards the landmass due to the temperature difference between the ocean and the land. This seasonal wind pattern is influenced by the differential heating and cooling of land and water.
The monsoon affects the entire region, not just the northern parts. In fact, the monsoon rainfall is crucial for agricultural activities and supports the livelihoods of millions of people across India, Bangladesh, Myanmar, Thailand, and other countries in the region. The rainfall is essential for the growth of crops and replenishing water sources, and it plays a vital role in the overall climate and ecosystems of the area.
The monsoon can bring intense rainfall, leading to both benefits and challenges. While the rainfall is necessary for agriculture and water resources, excessive or poorly distributed rainfall can result in flooding, landslides, and other hazards. Therefore, the monsoon is a significant climatic phenomenon that affects the entire region, not just specific parts of it.
In summary, the monsoon in India and Southeast Asia occurs during the summer months, brings heavy rainfall, and is influenced by seasonal wind patterns. However, it is not accurate to say that it primarily affects the northern parts of the region. The monsoon affects the entire region and plays a critical role in the socio-economic and environmental aspects of these countries.
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Policy makers and environmental experts struggle to agree on what should be done with nuclear waste, the life span of which will extend beyond human existence itself. What concept is best used to explain this phenomenon?
a.time-space compression
b.Anthropocene
c.ethnocentrism
d.cultural anthropology
The concept that is best used to explain the struggle between policy makers and environmental experts on what to do with nuclear waste is the Anthropocene. The Anthropocene refers to the current geological epoch in which humans are the primary drivers of environmental change. The production and disposal of nuclear waste is one of the many ways in which humans are altering the natural environment, and the long-term consequences of this waste are a pressing concern.
Policy makers and environmental experts may struggle to agree on how to handle nuclear waste due to differing perspectives on the significance of human impact on the environment. Anthropocentric perspectives prioritize human needs and desires above those of the natural world, while ecocentric perspectives prioritize the health and wellbeing of the environment itself.
The Anthropocene highlights the urgent need for interdisciplinary collaboration between policy makers, environmental experts, and other stakeholders in order to find sustainable solutions for the disposal of nuclear waste. This collaboration may involve input from cultural anthropologists who study how societies conceptualize and value the environment, and how these values can inform policy decisions. Ultimately, addressing the challenge of nuclear waste requires a holistic approach that considers the long-term implications of human actions on the environment.
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What are some potential negative effects of climate change? What could be some positive effects of climate change?
Answer:
negative:rising sea levels, extinction of certain species, more diseases.
postive: plant growth, some places becoming available, energy consumption decreasing, new tourist destination becoming available.
chapter13 standerized test prep answers earth science. what type of volanic rock commonly makes up much of the continental crust?
The sedimentary and metamorphic rocks that make up the continental crust are two different types of rocks.
Metamorphic rocks are created by heat and pressure, while sedimentary rocks are created by pressure and compaction. Sedimentary rocks, together with metamorphic rocks, are what make up the earth's crust because they are mostly located below the crust. Sedimentary rocks are created by the lithification of pre-existing rock or the fragments, bones, and shells of extinct organisms. Rocks are eroded and weathered into minute fragments, which are subsequently transported and deposited alongside other fragments of rock, or sediments. When rocks are crushed or subjected to intense pressure, such as thousands of feet of bedrock, they typically transform into metamorphic rocks.
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India's environment is at risk . justify
Answer:
Explanation:
Poor waste management
air and water pollution
deforestation
climate change