The layer of quartzite in this photograph would mostly weather by
A. hydrolysis
B. spontaneous combustion
C. dissolution
D. physical weathering
Answer: D
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Which category of toxic chemical has an acute response that includes death?
A. neurotoxin B. carcinogen C. teratogen D. mutagen
The 1969 National Environmental Policy Act
A. established the Environmental Protection Agency. B. designated federal agency procedures for rulemaking and enforcement. C. requires the U.S. federal government agencies to consider environmental consequences of the rules they make. D. addressed many ocean resources issues.
The greenhouse effect is directly enhanced by ____
A) photosynthesis B) energy absorption by atmospheric water vapor particles C) chemical weathering D) carbon dioxide dissolution in the oceans
One of the general concerns about the widespread use of transgenic organisms is the
A) spread of these transgenic traits to other organisms. B) need to apply more pesticides to crops and plow the soil twice a year. C) reduced yields that result from using bioengineered organisms. D) pressure to bring more land into agricultural production.