Question

deforestation most directly results in * (1) an increase in oxygen in the atmosphere (2) a decrease in soil erosion (3) a decrease in biodiversity in the area (4) an increase in the absorption of carbon dioxide

Explanation:

• Option 1: Trees produce oxygen via photosynthesis. Deforestation reduces trees, so oxygen should decrease, not increase. Eliminate (1).
• Option 2: Trees' roots hold soil. Deforestation removes roots, increasing soil erosion, not decreasing. Eliminate (2).
• Option 3: Forests are habitats. Removing them destroys homes for species, reducing biodiversity. This is correct.
• Option 4: Trees absorb CO₂. Fewer trees mean less CO₂ absorption, not more. Eliminate (4).

Answer:

(3) a decrease in biodiversity in the area