Precipitation that falls on Earth's surface ___.

A. almost entirely filters down into the underground aquifers
B. is mostly taken up by plants or other organisms
C. may take a variety of pathways through surface water or groundwater flow
D. is usually already unusable because of acid rain


C. may take a variety of pathways through surface water or groundwater flow

Environmental & Atmospheric Sciences

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The deep zone makes up about 80% of the ocean waters and it is characterized by ________

A) water with relatively uniform temperature and density throughout B) water that gradually decreases in temperature and increases in density with depth C) water that gradually decreases in temperature and density with depth D) water that gradually increases in temperature and density with depth E) water that gradually increases in temperature and decreases in density with depth

Environmental & Atmospheric Sciences

Which of the following is TRUE of CFCs?

A) They are now banned by international treaty. B) They have disappeared in the atmosphere. C) They are very toxic to humans. D) They are not able to exist for long in the atmosphere. E) They are now the most dominant gases in the stratosphere.

Environmental & Atmospheric Sciences

Which country burns more coal and emits more CO2 than any other country on Earth?

A) The United States B) China C) Germany D) India

Environmental & Atmospheric Sciences

A decrease in strength in a triaxial test could be caused by:

a. increasing confining pressure b. decreasing temperature c. decreasing strain rate d. none of the above

Environmental & Atmospheric Sciences