Rising ocean levels are due to
A. melting of ice on land that flows into the ocean.
B. warmer water.
C. both of these
D. none of the above
Answer: C
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Which is NOT a major international labor flow?
A) Mexico and the Caribbean to the United States B) South American countries to Argentina, Venezuela, and Peru C) from North Africa and southern Europe to northwestern Europe D) from Indonesia to Malaysia, Singapore, and Australia E) All of the above are major international labor flows.
The geologic timescale was originally developed by using radiometric dating.
a. true b. false
A gardener applied heavy doses of the same insecticide to her garden for two consecutive years to kill squash bugs
During the third year, although the squash bugs were reduced, the woman called in an expert to explain why she had an abundance of new pests that were destroying her garden. The expert explained that the abundant new pests were largely due to her previous use of an insecticide in a phenomenon known as A) pesticide resistance. B) secondary-pest outbreak. C) reverse mutation and adaptation. D) bounce back resurgence.
Physical methods for detoxifying hazardous wastes include
A. filtering with charcoal or resins to remove harmful solids. B. isolating the materials and placing them in safe storage. C. destroying toxic substances with bacteria and enzymes. D. activating chemical reactions to convert hazardous chemicals into harmless ones. E. using deep-well disposal.