Pastoral nomads and many animals migrate to mitigate the effects of drought, a coping adaptation known as drought avoidance
a. True
b. False
Indicate whether the statement is true or false
True
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Which of the following best matches the description?Energy that travels through space in the form of waves or particles.
A. radioactive half-life B. light-water reactor C. radiation D. thermal pollution E. nuclear breeder reactor F. decommissioning G. beta radiation H. moderator I. U-235 J. nuclear fusion K. alpha radiation L. transuranic waste M. nuclear fission N. rem O. gamma radiation P. heavy-water reactor
A hydric soil is one that
A) is typical of wetlands and may contain peat. B) is unusually well suited for agriculture. C) is typical of tropical areas that receive abundant rainfall. D) was typical of the U.S. prairie states until the Dust Bowl of the 1930s.
Which of the following lists, in proper sequential order, the steps typically leading to the formation of clastic sedimentary rock?
A) compaction, erosion, cementation, sedimentation B) sedimentation, precipitation,cementation, erosion C) erosion, sedimentation, compaction, cementation D) erosion, compaction, cementation, sedimentation E) precipitation, settling, compaction, cementation
Toxicity is
a. the study of the effects of poisonous substances. b. any toxic agent. c. any substance that causes environmental degradation. d. the degree of harm a substance can cause.