Changes in the output from the Sun
A) are significant and account for varying climatic cycles.
B) are totally insignificant.
C) do effect the earth-atmospheric temperature but the total impact is not fully understood.
D) account for the periods of drought and wetness over North America.
Answer: C
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The majority of surface rocks are
A. sedimentary. B. intrusive. C. metamorphic. D. extrusive.
If a researcher wanted to identify and map healthy vegetation using remote sensing, she would most likely use. Data that detects what type of energy?
A) Microwave B) Near-infrared C) Sonar D) Thermal infrared
The population density of the Earth has tripled since World War II. Indicate whether the statement is true or false
Pelagic sediments are commonly more fine-grained than neritic sediments.
Answer the following statement true (T) or false (F)