At the core of most environmental problems is this most ...

[FButt]

At the core of most environmental problems is this most fundamental problem:
 a. air and water pollution.
 b. ozone depletion.
 c. global warming.
 d. overpopulation.

Question 2

Increased carbon dioxide concentrations in the atmosphere are closely associated with:
 a. decreased plant life.
 b. the increase in the use of nuclear power.
 c. thinning of the ozone layer.
 d. increased global temperature.

[connor417]

Answer to Question 1

d

Answer to Question 2

d