Question

read the paragraph.

climate change resulting from greenhouse gases is a serious issue that demands immediate action. throughout the world, we can already see the significant effects of climate change on people and natural habitats.

what would make the best conclusion?

• if we do not take action now, our world will undergo drastic changes that will negatively affect our environment for thousands of years.
• ive seen temperatures rise over my lifetime, and i hate to think of them rising further.
• scientists will lead the way with new evidence, but we all must join together to take effective action against this impending issue.
• more and more, our ice caps will melt and our weather will change, and only those of us who are insightful will take a stand.

Explanation:

Analyze the main ideas of the paragraph

The paragraph introduces climate change as a serious issue requiring immediate action and notes that its significant effects are already visible globally on people and habitats.

Evaluate the options for the best conclusion

• Option 1: "If we do not take action now, our world will undergo drastic changes that will negatively affect our environment for thousands of years." This directly connects to the paragraph's focus on the need for immediate action and the visible effects on habitats.
• Option 2: "I've seen temperatures rise over my lifetime..." introduces an informal, personal narrative voice ("I") that is inconsistent with the objective, formal tone of the paragraph.
• Option 3: "Scientists will lead the way..." introduces new specific details about scientists and evidence that are not established in the short text.
• Option 4: "More and more, our ice caps will melt..." introduces specific predictions and includes a subjective, exclusionary statement ("only those of us who are insightful") which deviates from the paragraph's objective tone.

Select the most cohesive concluding sentence

Option 1 is the best fit because it maintains the formal tone, synthesizes the main points (immediate action and environmental impact), and provides a strong, logical wrap-up.

Answer:

• (A) If we do not take action now, our world will undergo drastic changes that will negatively affect our environment for thousands of years. (Correct answer)
• (B) I've seen temperatures rise over my lifetime, and I hate to think of them rising further.
• (C) Scientists will lead the way with new evidence, but we all must join together to take effective action against this impending issue.
• (D) More and more, our ice caps will melt and our weather will change, and only those of us who are insightful will take a stand.