The number of naturally occurring elements on Earth is ____________.
a. 50
b. 75
c. 92
d. 118
Answer: c. 92
Environmental & Atmospheric Sciences
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Indicate whether the statement is true or false
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A) north B) south C) east D) west E) higher
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Land not suited for agriculture is called
A) arable land. B) dry lands. C) wet lands. D) arid land. E) desert.
Environmental & Atmospheric Sciences
Plate tectonics
A) moves continents at the rate of about 1 meter per day. B) is the cause of most short-term climate changes. C) cannot explain why today's equatorial regions can have evidence of past glaciation. D) can alter the climates of continents by moving them north or south. E) all of the above
Environmental & Atmospheric Sciences