Environmental C...

What can reduce the use of pesticides?

Over a number of years the average pH of a stream changes from a pH of 6.9 to a pH of 5.9 due to acid rain. Which statement is true about the pH of the stream?

Mycorrhizal fungi, which form a mutualistic association with many plant roots, are particularly sensitive to the effects of acid rain. These fungi facilitate the absorption of water and nutrients by the plants; in turn, the plants provide sugars and amino acids without which the fungi could not survive.

Chlorofluorocarbons cause

Identify the correct statements about acid rain.
I. Acid rain is caused by nitric acid and sulfuric acid.
II. Acid rain can damage plants directly.
III. Acid rain can cause magnesium and calcium to be leached from the soil.

Which of the following statements is true about acid rain? 

In the gases below, which would react with rain water to produce acid rain?
i. CFCs
ii. Methane
iii. Carbon dioxide

Which of the following gas is used in bleaching of paper?

Which of the following is the result of use of chlorofluorocarbons?

Increased $$SO_2$$ concentration in the air causes