Which is an example of a chemical change?
A. burning paper
B. cutting paper
C. shattering a china teacup
D. boiling water
Answer: A
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The original purpose of parks in eastern U.S. cities was to ________
A) provide open places for picnics and games, such as football, cricket, and lawn tennis B) provide wildlife sanctuaries within cities C) protect passenger pigeons, Carolina parakeets, and other rapidly declining species D) provide protected places for hunting foxes, birds, and deer E) provide a European style experience of the beauty and intimacy of formal landscapes
Frequently, very heavy amounts of rainfall are recorded when a hurricane or tropical storm moves over land. Why do these storms produce so much rain?
What will be an ideal response?
The Central American Free Trade Agreement's (CAFTA) purpose is to __________ the US and the countries of Central America.
a. increase wealth for b. diminish human rights in c. provide labor for d. reduce trade barriers between e. balance wealth between
Methods to contain and clean up an oil spill ____
A) ?are most efficient if begun within 24 hours of the disaster B) ?cost less today than they did 20 years ago C) ?sometimes cause more damage than the oil itself D) ?are best when the oil is dispersed by chemicals sprayed on the ocean surface