Anthropogenic pollution is caused by

A) people.
B) climate.
C) animals.
D) rocks.
E) anthropologists.


A) people.

Environmental & Atmospheric Sciences

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The process of hydraulic fracturing involves using ________

A) the energy from "fractured" water molecules to create a flow of electrons B) coal as a chemical reactant for producing natural gas C) explosives to fracture layers of rock that contain natural gas D) high-pressure fluids to fracture rock layers that contain natural gas

Environmental & Atmospheric Sciences

Cytokines perform which of the following functions?

A) bringing leukocytes to injured tissue B) helping leukocytes migrate out of the blood vessels C) activate leukocytes D) all of the above

Environmental & Atmospheric Sciences

The process of expanding air causes cooling, an adiabatic process where temperature changes without loss of heat. 

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

Environmental & Atmospheric Sciences

If we were to lower our rate of CO2 production by a third-down from 9 to 6 billion tons per year-the concentration of CO2 in the atmosphere should

A. reach a steady state. B. continue to increase. C. start to decrease. D. It depends upon whether there are any major volcanic eruptions.

Environmental & Atmospheric Sciences