One of the most significant contributions of Gene Likens and his colleagues at Hubbard Brook was the discovery of acid rain. Which of the following statements about their research into acid rain is false? a. Acid rain occurs when nitrogen oxides (NO) are converted to acids in the atmosphere. b. Precursors of acid rain are produced when fossil fuels are burned in cars or power plants. c. Acid rain is primarily a local phenomenon that is closely tied to local pollution problems d. Acid rain alters how nutrients move through a forest, reducing the health of trees

the following statements about their research into acid rain which is false is option C.(Acid rain is primarily a local phenomenon that is closely tied to local pollution problems)

Explanation:

Acid rain is a type of rainfall that is acidic in nature ( that is, it has low pH) due to environmental pollution by gases from industrial burning of coal and other fossil fuels. These gases includes Sulphur and nitrogen oxides which has the ability to combine in the atmosphere and precipitate acid rain.

From the contributions of Gene Likens and his colleagues at Hubbard Brook about acid rain, they discovered that :

-fossil fuel combustion, which is globally used, is the major source of these gases that cause acid precipitation. Therefore it is not a localised pollution, it occurs globally.

-Acid rain occurs when nitrogen oxides (NO) are converted to acids in the atmosphere.

-Acid rain alters how nutrients move through a forest, reducing the health of trees.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.