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प्रश्न
There is a general belief that forests tend to bring more frequent rains. Can you explain it scientifically?
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उत्तर
Forests have large number of plants especially trees. Each plant loses water in the form of water vapour everyday into the atmosphere through transpiration. A large apple tree loses as much as 30 litres of water per day. So huge amount of water is escaped into the atmosphere by forests. This increases the moisture in the atmosphere and brings more frequent rains.
संबंधित प्रश्न
Most of the transpiration in tall trees occurs through
Transpiration is best defined as
Give suitable explanation for the following:
Excessive transpiration results in the wilting of the leaves.
List any three major factors that accelerate the rate of transpiration.
Mention any three methods by which the plants tend to reduce transpiration.
In an experiment, four freshly plucked leaves (A-D) of a plant, such as those of china – rose, were treated as follows:
(a) Coated with Vaseline on its upper surface.
(b) coated on the lower surface.
(c) coated on both surface
(d) left uncoated.
All the four leaves A, B, C & D were left in a room for about 24 hours.
(i) which leaf would become most limp? Why?
(ii) which leaf would show least limping? Why?
Choose the correct answer:
The rate of transpiration is determined with the following instrument ____________
Describe any three conditions which affect transpiration.
Name three extrinsic factors which decrease the rate of transpiration.
