Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

A. Heat-related illnesses result from the increase in earth's temperature.

B. Heat-related illnesses result in the increase in earth's temperature.

C. Heat-related illnesses lead to the increase in earth's temperature.

D. Heat-related illnesses trigger the increase in earth's temperature.

A. Carbon dioxide is the only greenhouse gas that causes global warming.

B. Global warming results in greenhouse gases, including carbon dioxide.

C. One of the main greenhouse gases that lead to global warming is carbon dioxide.

D. Global warming causes greenhouse gases, including carbon dioxide.

A. Numerous catastrophic consequences result in climate change.

B. Numerous catastrophic consequences result from climate change.

C. Climate change results from numerous catastrophic consequences.

D. Numerous catastrophic consequences cause climate change.

A. We decided to reduce carbon footprints before seeing people suffer global warming consequences.

B. We saw people suffer global warming consequences after we decided to reduce carbon footprints.

C. We decided to cut down on carbon footprints after we saw people suffer global warming consequences.

D. We decided to cut down on carbon footprints before we saw people suffer global warming consequences.

A. Global warming can't be controlled by planting trees.

B. Planting trees is the only way to control global warming.

C. Planting trees can accelerate global warming.

D. Planting trees can help reduce global warming.

A. Shrinking

B. Declining

C. Decreasing

D. Increasing

 A. pollution

B. continue

C. enormous

D. disappear