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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
The loss of water as water vapour from the acrial parts of a plant is known as
Transpiration will be fastest when the day is
List the four advantages of transpiration to the plants.
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?
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.
Answer the following (only in few words);
What is the impact of more atmospheric pressure on transpiration?
Choose the correct answer:
Rate of transpiration is more, when __________
Choose the correct answer:
Transpiration rate is high, when ___________
