How do scientists expect the ozone hole to change over the next several decades? What is this forecast based on?
What will be an ideal response?
Answers may vary.
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The Aral Sea and Caspian Sea have which of the following in common?
A) both frequently generate hurricanes B) both are located within Tibet C) both have lost the vast majority of their volume due to irrigation D) they both form part of the coastline of Afghanistan E) neither is connected to the ocean.
New Zealand does not gain a large part of its national income from mining or manufacturing, though these industries do exist.
a. true b. false
Factors contributing to desertification in the Sahel include all of the following except
A) deforestation and overgrazing. B) population increases. C) southward expansion of desert conditions following persistent drought. D) lack of a regional environmental policy. E) northward shift of the ITCZ.
As Suzy's velocity increases when she skydives, her acceleration
A. remains unchanged. B. decreases. C. cannot be estimated. D. also increases.