Question

question 1 of 10 how does planting high-yield crop varieties make farming more sustainable? a. it increases the amount of water needed. b. it decreases the amount of land needed c. it keeps soil fertility from diminishing over time. d. it keeps chemicals from entering the watershed.

Explanation:

• Option A: High - yield crops usually aim to be more efficient, so they don't increase water need. Eliminate A.
• Option B: High - yield crops produce more per unit area. So to get the same or more yield, less land is needed, which is sustainable (less land use, less deforestation etc.). This makes sense.
• Option C: High - yield crops don't inherently prevent soil fertility loss. Practices like crop rotation or fertilization affect soil fertility. Eliminate C.
• Option D: High - yield crops don't specifically prevent chemicals from entering watersheds. Practices like proper pesticide use do. Eliminate D.

Answer:

B. It decreases the amount of land needed