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प्रश्न
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
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उत्तर
| Things which give out oxygen | Things which give out carbon dioxide |
| Brinjal plant | bog |
| Papaya plant | Cat |
| Coconut tree | Monkey |
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संबंधित प्रश्न
Suggest five measures to prevent air pollution.
Fill in the blank :
________ is the most abundant inert gas present in air.
Statement given below is incorrect. Write the correct statement :
During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
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.
How do plants and animals maintain the balance of oxygen and carbon dioxide in the air?
Which of the following is true about oxygen?
Carbon dioxide gas is ______.
The solid form of CO2 is called dry ice which undergoes condensation.
