Air and Atmosphere
Trending Questions
Q.
Plants use
Oxygen, nitrogen
nitrogen, carbon dioxide
oxygen, carbon dioxide
carbon dioxide, oxygen
Q. _______ gas is present in air in a very small quantity and is important for plants.
- Hydrogen
- Carbon monoxide
- Carbon dioxide
- Nitrogen
Q. ____ is the outermost layer of the Earth's atmosphere.
- Troposphere
- Thermosphere
- Exosphere
- Mesosphere
Q. Nitrogen gas is used in packaging of chips.
- True
- False
Q.
Plants use oxygen to make their food.
True
False
Q.
Hot air is less dense than cold air.
True
False
Q. The blanket of air that surrounds the earth is called the ___________.
- atmosphere
- temperature
- crust
- biosphere
Q. Give one word for the following. (1 mark)
The action of cutting down trees over a large area of a forest for human activities
The action of cutting down trees over a large area of a forest for human activities
Q.
Arun is standing near the sea at night , he feels the breeze blowing from
the land to the sea
the sea to the land
Q.
The pie chart shows the composition of air.
What do X and Y represent respectively?
- Carbon dioxide, Nitrogen
- Nitrogen, Oxygen
- Nitrogen, Carbon monoxide
- Helium, Argon