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प्रश्न
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
उत्तर
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants require energy for their growth.
- Plants manufacture food by a process called photosynthesis.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- During this process, oxygen is released by plants.
- Such oxygen is available to animals and human beings for breathing.
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Tick (√) the most appropriate answer.
The presence of water vapour in air is essential for :
Give reason:
Aquatic animals and plants are able to survive in the matter.
Fill in the blank
Aquatic plants and animals use _________ in water.
Name the following:
An inert gas which has a low boiling point and is used for producing very low temperatures
Explain why during an incident of fire, one is advised to wrap a woollen blanket over a burning object.
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
Write about the reaction of nitrogen with non metals.
Which gas in the atmosphere is essential for respiration?
“Air is not an elementary substance, but a composition”. Why?
