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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
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 from the four options given below :
Which one of the following does not affect the rate of transpiration ?
Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
Name the process being studies. Define the process.
Name the following.
The instrument used for measuring the rate of transpiration.
Give Technical Term
The substances which check the rate of transpiration.
How does the rate of Transpiration differ when there is High humidity?
Name the three external factors which increase the rate of transpiration.
Name three extrinsic factors which decrease the rate of transpiration.
