Plants grow sparsely in arid regions of the world:
Correct answer: C. Because of several environmental factors combining together
- A. Only because of high temperature
- B. Because no seeds fall near the soil
- C. Because of several environmental factors combining together
- D. Because the soil is sandy
Explanation
Arid vegetation is sparse because limited moisture interacts with factors such as high evaporation, poor soils, salinity, and temperature extremes. Sandy soil or high temperature alone cannot explain the pattern in all arid regions.
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