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प्रश्न
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Why was the pot covered with a plastic sheet?
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उत्तर
The pot is covered with a plastic sheet to prevent evaporation of water from the soil.
संबंधित प्रश्न
The loss of water in the form of water vapour through stomata on leaves is known as ___________.
Fill in the blank:
Water is lost from the leaves by__________.
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in the correct form by changing either the first or the last word only.
Most transpiration occurs at midnight.
Give suitable explanation for the following:
Perspiration and transpiration help to cool the body temperature of the organism.
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in sunlight.
______ involves evaporative loss of water from aerial parts.
Plants lose water by the process of transpiration.
Water molecule is very polar. Polar end of molecule attracts opposite charges on another water molecule (acts like magnet). How will you explain this property of water with reference to upward movement of water? Comment on the upward movement of water given the intermolecular hydrogen bonding in water.
Which of the following is an external factor affecting the rate of transpiration?
Define the following term:
Wilting
