About ______ of all freshwater withdrawn from rivers, lakes, and groundwater is used for irrigation of cropland.

Answer:

We are un able to do your work for you

Explanation:

It is not the use for brainly if you need some extra assistance or help see if your school provides tutorme

Option D is true. In the absence of opposing forces, an island population will eventually have the same allele frequency as the mainland, and in the absence of migration and other evolutionary processes, the allele frequency on an island will remain constant.

Option D correctly summarizes the consequences of migration from a continent (mainland) to an island. In the absence of opposing forces, such as natural selection or genetic drift, gene flow through migration can eventually lead to the island population having the same allele frequency as the mainland population.

This is because migration introduces new genetic variants and increases genetic diversity on the island.

However, in the absence of migration and other evolutionary processes like genetic drift and natural selection, the allele frequency on an island will remain constant.

This is known as the Hardy-Weinberg equilibrium, where the frequencies of alleles in a population do not change over generations.

Migration plays a significant role in shaping allele frequencies in populations. When individuals migrate between the mainland and the island, or between different islands, they bring new alleles or introduce existing ones to different populations.

Over time, repeated migration events can homogenize allele frequencies, making the populations more similar to each other.

Therefore, the correct answer is option D, as it captures the different consequences of migration and the absence of evolutionary processes on allele frequencies in island populations.

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Answer:

geoscience proccesses change the landscape by altering the climate as well as the landscape over time. moving air or more commonaly reffered to as storms,tornados,cold and hot fronts change tempature of the area temporarily. The melting of the polar ice caps allows the water from the ice caps to melt back into the ocean causing tides to recede and climate to change drastically over time.

Explanation

write whatever you feel is correct there are many different geological phenomina that change the landscape all the time

Answer: addressing environmental issues that have resulted from rapid economic development, such as soil erosion, water pollution, desertification and oil spills.

Explanation:

The following bodies of water is described in the paragraph above: the Caspian Sea. Thus option (D) is correct.

A sea is an area of open water that is partially bounded by a land barrier while a gulf is an area of water indented into a land mass. A sea is a smaller part of an ocean and is typically partially contained by an area of land.

The black sea bordered by Ukraine to the north, Russia to the northeast, Georgia to the east, Turkey to the south, and Bulgaria and Romania to the west.

The following bodies of water is described in the paragraph above: the Caspian Sea. Therefore, option (D) is correct.

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Two common factors  why it is difficult for fishery scientists to make accurate population estimates are Large and complex ecosystems and Limited data availability

There are several reasons why it is difficult for fishery scientists to make accurate population estimates for most species of fish, but here are two common reasons:

Large and complex ecosystems: Fish populations are part of complex and interconnected ecosystems that span vast areas. Measuring and tracking the movements and populations of fish can be difficult due to the scale and complexity of these ecosystems.

Limited data availability: Collecting data on fish populations can be time-consuming and expensive. For many fish species, there may be limited historical data or incomplete data on population sizes and trends, which makes it difficult to accurately estimate current population levels.

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Answer:

I think it would be April 20th

Answer:

\(\displaystyle{\left(x-4\right)^2 + \left(y-9\right)^2 = 49}\)

Explanation:

The equation of a circle is:

\(\displaystyle{\left(x-h\right)^2 + \left(y-k\right)^2 = r^2}\)

Where (h,k) represents the center point and r is the radius. We know the center is at (4,9) and the radius is 7. Thus, substitute in the values:

\(\displaystyle{\left(x-4\right)^2 + \left(y-9\right)^2 = 7^2}\)

Which eventually becomes:

\(\displaystyle{\left(x-4\right)^2 + \left(y-9\right)^2 = 49}\)

Answer:

The diamond is more than a billion years old.

Diamonds are the hardest natural substance on earth.

Diamonds are made of only one element: carbon.

Diamonds come in every color.  

Scientists have discovered a planet that they believe is composed mostly of carbon, and is one-third pure diamond.

Answer:they're shiny, having the ability to reflect light in different ways, an organic disco ball if you will.

Explanation:

Answer:All of the Above

Explanation:

Climate change is said to cause all three of these, therefore the answer is all of the above

Answer:

i think it is the inner core

Explanation:

Answer: Turritopsis dohrnii

Explanation: Turritopsis dohrnii, the so-called "immortal jellyfish," can hit the reset button and revert to an earlier developmental stage if it is injured or otherwise threatened. Like all jellyfish, Turritopsis dohrnii begins life as a larva, called a planula, which develops from a fertilized egg.

The informal sector is a critical part of the economy in many developing countries.  it is essential to recognize and support the informal sector's contribution to economic development and to create an enabling environment for its growth.

The informal sector is often viewed as an important source of employment and income for low-skilled workers who lack formal employment opportunities, especially in urban areas where formal jobs are scarce.The informal sector is an essential component of the economy in Ladysmith, and it plays a vital role in the local area's economic development.

The informal sector in Ladysmith has significant potential to contribute to poverty reduction and sustainable development. A possible hypothesis is that the informal sector plays an essential role in alleviating poverty in the Ladysmith area.

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During the western expansion in the United States, there were several geographic breaks in the mountains that facilitated English westward migration.

Some of these notable breaks include Cumberland Gap, South Pass and Donner Pass. While these breaks in the mountains facilitated western expansion, there were also other significant obstacles that impeded the movement and settlement of English pioneers.

The vast expanse of the Great Plains and Rocky Mountains, characterized by its grasslands and lack of natural waterways, and rugged terrain, steep slopes, and harsh climate respectively posed a challenge for westward expansion. Pioneers faced resistance and conflicts with Native American tribes whose lands they encroached upon. These conflicts often posed significant challenges to westward expansion, as Native American tribes fiercely defended their territories.

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Answer:

In 2020,

unseasonably warm weather was reported to be closing ski resorts in several continents. Some examples include:

In Europe, ski resorts in the Alps were affected by lack of snowfall and high temperatures, forcing some to close early or not open at all.

In North America, ski resorts in the western United States, such as California and Colorado, were also affected by lack of snowfall and high temperatures.

Explanation:

Answer: Pressure

Explanation: One type of stress that we are all used to is a uniform stress, called pressure. A uniform stress is a stress wherein the forces act equally from all directions. In the Earth the pressure due to the weight of overlying rocks is a uniform stress, and is sometimes referred to as confining stress.

Based on the theory of island biogeography, Madagascar is a larger island with a wider variety of habitats and resources, native species there have a higher chance of surviving.

According to the island biogeography theory, an island's size and degree of isolation have an impact on its biodiversity and species composition. There are more species on larger, less isolated islands than there are on smaller, more isolated islands. The equilibrium model of island biogeography, which forms the basis of the theory, predicts that an island's species diversity is positively correlated with its size but negatively correlated with its distance from the mainland. It consists of mountain ranges, a lake encircled by a desert, a small area of forest, or even a national park. The hypothesis offers a framework for explaining the diversity and singularity of species, both plant and animal, that can be found in a remote place.

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Answer:

Movement =  Immigration from Europe and Africa after 1500

Region = Northern half of Western Hemisphere

Location = Canada, United States, Mexico, and Caribbean, with subdivisions for each

Place = Most climates of any continent

Explanation:

Waterfalls and rapids provided a source of energy that was harnessed by early settlers to establish gristmills, which played a key role in shaping the human-environment interaction and location of many communities.

The Fall Line, which marks the boundary between the Atlantic Coastal Plain and the Piedmont Plateau, is a significant geographical feature that has shaped the development of many regions in the United States. At this location, waterfalls and rapids provided a source of energy that was harnessed by early settlers to establish gristmills, which played a key role in shaping the human-environment interaction and location of many communities.

These gristmills, which were essential for grinding grain into flour, were often located near the fall line to take advantage of the energy generated by the falling water. This, in turn, attracted settlers to the area, leading to the growth and development of towns and cities along the fall line.

As such, the fall line and gristmills serve as powerful examples of the interplay between movement, region, human-environment interaction, location, and place in shaping the character and development of a region.

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Answer:

Global warming is an urgent problem that requires immediate action. The scientific consensus is clear: human activities like burning fossil fuels and deforestation are the main causes.

It has severe environmental consequences, such as habitat loss and extreme weather events. It also directly affects human health, leading to illnesses and food and water shortages. The economic impact is significant, with natural disasters and infrastructure costs.

Moreover, it worsens social inequalities, affecting vulnerable communities. Transitioning to renewable energy is important for combating global warming and offers economic benefits.  

In short, governments, industries, and individuals must prioritize sustainable practices and reduce greenhouse gas emissions to secure a livable planet for our kids and their kids.

Explanation:

Short and simplified version that you can use to expand on with all the main points.

The statement "it was the Chinese who provided critical ancient data on supernovae and comets" is false.

While it is true that Chinese astronomers made significant contributions to the field of astronomy throughout history, they were not the sole providers of critical ancient data on supernovae and comets.

Each civilization had its own unique contributions to the understanding of celestial phenomena. For example, the Chinese observed and documented various celestial events, including comets, novae, and supernovae, in their historical records.

However, it is important to note that other cultures also made substantial contributions. The ancient Greeks, for instance, had a sophisticated understanding of astronomy and made significant advances in the field.

Greek astronomers, such as Hipparchus and Ptolemy, developed theories and models to explain the motions of celestial bodies, including comets and supernovae.

Furthermore, ancient civilizations outside of China and Greece also made important contributions. The Babylonians, for instance, were skilled astronomers and kept meticulous records of celestial events. These records include observations of comets and supernovae.

In summary, while the Chinese did provide valuable ancient data on celestial events, including supernovae and comets, they were not the exclusive contributors.

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Answer:

The official languages of Canada are French and English

Explanation:

100% correct

Answer:

The Bureau of the Census defines urban as comprising all territory, popu- lation, and housing units located in urbanized areas and in places of 2,500 or more inhabitants outside of UAs. The term urban refers to both kinds of geographic entities.

Explanation:

Answer:

the Bureau of the Census defines urban as comprising all territory, popu- lation, and housing units located in urbanized areas and in places of 2,500 or more inhabitants outside of UAs. The term urban refers to both kinds of geographic entities

Explanation:

The Gulf Stream is a warm current in the Atlantic Ocean that flows from the Gulf of Mexico to Northern Europe, and it has a significant effect on the climate of the region.

It has both positive and negative effects on the climate and weather of Europe.The first benefit of the Gulf Stream is that it has a significant warming impact on the climate of Northern Europe. The Gulf Stream's warm waters make the area's winters milder and more habitable. It is the Gulf Stream that allows cities like London to maintain a comfortable temperature and prevents the entire region from becoming frozen.

During the winter months, the Gulf Stream brings warm water and mild winds to the UK, causing average temperatures to remain above freezing, allowing people to thrive in otherwise harsh conditions.The Gulf Stream, on the other hand, is not always a good thing. When the Gulf Stream's warm water meets the cold, dry air of Europe, it creates a large amount of precipitation.

This can lead to severe flooding in the United Kingdom and Northern Europe. The Gulf Stream's warm water also adds to the melting of Arctic sea ice, which can have an effect on global weather patterns.

In conclusion, the Gulf Stream has both positive and negative effects on the climate and weather of Northern Europe.

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