Which are ways that humans can lower biodiversity as they use the environment?

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In the 1800s nearly all of the nations in Africa were colonized by European countries. What is a present-day legacy left over from the colonial period? A. Most African countries have industrialized faster then Europe B.

The distance from the earth to polaris is approximately 5.78 * 1018 m. the speed of light is 2.99792 * 108 m/s. if the north star polaris were to burn out today, in how many years would it disappear from our vision? answer in units of years.

What happens to the Mississippi River water when it flows into the Gulf of Mexico?

Deserts advance linearly, in easily mapping patterns true or false

list interactive activity I can do with my classmates and some other ideas to add other than a documentary. (ex. pamphlets of info) / This is for a project on desertification (turning into desert)

What country is 20 degrees south and 140 degrees east?

Which of the following countries has the second largest economy in the world?

Is the black hole real? If true, can't the scientists send a robot there?

Describe the story that anthropologists think the bones and tools they have discovered reveal about prehistory

Someone from Poland?