Which figure comes closest to the estimated number of thunderstorms that occur each year throughout the world?

A. 2,000
B. 40,000
C. 100,000
D. 14,000,000


Answer: D

Environmental & Atmospheric Sciences

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Only animals are considered invasive species.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Haiti's 2008 earthquake resulted in over 230,000 deaths whereas Japan's 2011 earthquake resulted in 20,000 deaths. What explains the differences in loss of life?

A) effectiveness of search & rescue operations B) strength of the earthquake C) in Haiti there was also a tsunami that followed the earthquake D) local building standards E) effectiveness of search and rescue operations and local building standards

Environmental & Atmospheric Sciences

Which of the following is NOT true of basaltic lava flows?

A. They flow downhill from the vent area. B. They form from nonexplosive eruptions. C. They pile up in steep, cone-shaped hills. D. They can issue from the bases of cinder cones.

Environmental & Atmospheric Sciences

Four companies, Alpha, Beta, Gamma and Delta, are burning coal to produce electricity. As a result, they also produce emissions. In the table below, the first row of shows the total pounds of emissions currently produced by each firm. The other rows of the table show the cost for each firm of reducing emissions by the first 50 tons, the second 50 tons, and so on. The total cost of requiring each firm to reduce its garbage by one third is

A. $167 B. $137 C. $187 D. $127

Environmental & Atmospheric Sciences