In which of the following forms is most of the radiation emitted by the human body?
A. visible radiation, but too weak to be visible
B. invisible ultraviolet radiation
C. invisible gamma radiation
D. invisible infrared radiation
Answer: D
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What is one reason that the effectiveness of CITES is limited?
A. The treaty was written to protect the rights of poachers. B. No member countries have signed the treaty. C. Member countries have the ability to exempt themselves from protecting any listed species. D. Member countries have the ability to enforce their own laws world-wide E. The mandated fines are unreasonably heavy.
What component of a beach profile is a flattish, wave-deposited sediment platform?
A. sandbar B. backshore C. dune D. nearshore E. berm
What drives surface ocean currents?
a. the rotation of the Earth b. the Earth's magnetic field c. wind d. waves e. storm activity
Continental rifting has not occurred on Earth since the Triassic. Indicate whether the statement is true or false