The multiple choice questions have five answer choices — one (and only one) is correct in each case.
As rain mixes with chemicals such as sulfur dioxide in the air, acid rain is produced. This may result in
Select an Answer
lowering the pH in ponds, thus limiting the survival of many organisms
lowering the pH in ponds, thus affecting water temperature
raising the pH in ponds, thus encouraging the growth of organisms
raising the pH in ponds, thus limiting animal development
depleting atmospheric carbon dioxide available for photosynthesis
The correct answer is that it lowers the pH in ponds and limits the survival of many organisms (A). Choice (B) correctly identifies the lower pH, but incorrectly couples it with water temperature. Choices (C) and (D) incorrectly state that acid rain will raise the pH. Choice (E) suggests that somehow carbon dioxide will be removed from the air when acid rain is formed. Carbon dioxide within bodies of water is at equilibrium with carbon dioxide in the air.