Describe three impacts industrialization and the development of agriculture have had on the Earth’s ecosystems.
What will be an ideal response?
Answers should address three of the following?
• Since 1750, the total forested area on the Earth has declined by more than twenty percent.
• Today, there are more trees on farms than in wild forests.
• Since 1750, total cropland has grown by nearly 500 percent.
• Since 1750, people have released the quantities of fossil carbon that the planet took hundreds of millions of years to store away.
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The size of the Latin American region in land area is about
a. twice that of the United States. b. twice that of Europe. c. twice that of Australia. d. the same size as the United States.
Which of the following is likely to be true about the right volcanic feature compared to the left one in this figure?
A. The magma has fewer silicate chains. B. The magma probably formed at a higher temperature. C. The magma has a lower viscosity. D. All of these choices are correct.
Radiometric dating is based on the rate at which a radioactive isotope decays.
Answer the following statement true (T) or false (F)
During the Late Paleozoic, the southern part of Pangaea was distinguished by ____ climate conditions
a. arid b. tropical c. arctic d. temperate e. tundra