Question

Why did the leaves of the trees cover with dust?
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Answer 1

Answer:

Leaves of trees dusted with particulate matter showed significant reduction in protein and nitrogen content with corresponding leaf fall in deciduous species. Dust deposition on leaves results in reduction in the photosynthetic leaf area resulting in reduced photosynthesis.

Explanation:

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Answer 2

Answer:

dust on the leaf surface affects plant growth and development. Leaves covered with dust receive less light for photosynthesis; this interferes with gas exchange between the leaf and air, and the reduction of leaf stomatal conductance influences plant biomass formation and yield.