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प्रश्न
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The percentage of carbon dioxide in the air is between 0.2 to 0.4%.
विकल्प
True
False
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उत्तर
This statement is False.
संबंधित प्रश्न
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
Fill in the blanks
Oxygen is used in ___________the food to get _______.
Give word equation for the following conversion:
Nitrogen dioxide to nitric acid
Write the percentage of the gases present in air.
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
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.
Nitrogen is essential for burning.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Mountaineers carry oxygen ______ with them, while climbing high mountains.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
