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B
Photosynthesis
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C
Absorption
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D
Transpiration
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Solution
The correct option is D Transpiration
Wilting mainly occurs when the amount of water loss is more than the water absorbed from the soil.
Plants are constantly losing water through small openings in their leaves called stomata in a process known as transpiration. Transpiration is vital for photosynthesis and helps transport nutrients from the roots to the rest of the plant.
The rate of transpiration depends on a number of factors, like carbon dioxide concentration, temperature, light, humidity etc.
Hot and dry weather increases the rate of transpiration, resulting in a loss of more water than the plant can absorb, throwing off the water balance within the plant.