Greening the Globe — Unit test Answers

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The majority of scientists predict that the rise in global temperature by 2100 will range from __________.

1° F to 4° F

2° F to 10° F

5° F to 15° F

10° F to 20° F

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Explain how water pollution affects marine ecosystems.

Answer not available

Which of the following has contributed the most to the increase of invasive species in Europe?

air pollution that has destroyed native plants

desalination, which has killed native plants

an increase in trade across the continent

the lack of invasive species legislation in Europe

Which of the following factors is a major reason for the high risk of drought in Africa?

Africa has been getting less rainfall since 1968.

Civil wars have led to the destruction of crops.

The rising elephant population has destroyed watersheds.

The Aswan Dam changed the course of the Nile River.

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