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  4. Destruction of chlorophyll, premature falling of leaves and yellowing of leaf is caused due to the excess amounts of in the atmosphere.

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Q. Destruction of chlorophyll, premature falling of leaves and yellowing of leaf is caused due to the excess amounts of _______ in the atmosphere.

NTA AbhyasNTA Abhyas 2022

Solution:

Plants are sensitive to sulphur dioxide and they are affected by it both directly and indirectly. The direct effects may be acute or chronic, depending on the duration and intensity of the exposure. Sulphur dioxide inhibits photosynthesis by disrupting the photosynthetic mechanism.