The most recent Era on the Earth is ________

A) Permian
B) Eocene
C) Precambrian
D) Miocene
E) Cenozoic


Answer: E

Environmental & Atmospheric Sciences

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Which of the following conditions occurs during the negative phase of the North Atlantic Oscillation?

A. An increased pressure gradient exists across the North Atlantic Ocean. B. Pressure decreases near the coast of Greenland. C. The prevailing westerlies in the northern hemisphere are stronger. D. Winters in northern Canada are relatively mild.

Environmental & Atmospheric Sciences

What percentage of parent isotope is remaining if 2 half lifes have elapsed?

A. 6.25% B. 12.5% C. 25% D. 50% E. 100%

Environmental & Atmospheric Sciences

Volatile organic compounds, a primary pollutant, are also called hydrocarbons

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Which of the following is considered to be a waste product of photosynthesis?

A) H2O B) CO2 C) O2 D) none of these

Environmental & Atmospheric Sciences