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WorksheetsSrujal
Total questions: 9
Worksheet time: 45secs
What is the composition of air?
Carbon Dioxide and Water Vapor
Oxygen and Carbon Dioxide
Nitrogen and Carbon Dioxide
Nitrogen and Oxygen
Which gas in the atmosphere is essential for respiration?
Water Vapor
Nitrogen
Carbon Dioxide
Oxygen
How will you prove that air supports burning?
By covering a candle with a glass tumbler
By heating water in a container
By observing bubbles in water
By observing dust particles in sunlight
How will you show that air is dissolved in water?
By covering a candle with a glass tumbler
By heating water in a container
By observing bubbles in water
By observing dust particles in sunlight
Why does a lump of cotton wool shrink in water?
Due to the presence of water vapor in the cotton wool
Due to the presence of nitrogen in the cotton wool
Due to the presence of carbon dioxide in the cotton wool
Due to the presence of air in the cotton wool
The layer of air around the earth is known as ___________.
Ozone
Atmosphere
Stratosphere
Troposphere
The component of air used by green plants to make their food, is ___________.
Nitrogen
Oxygen
Water Vapor
Carbon Dioxide
List five activities that are possible due to the presence of air.
Running, Swimming, Cycling, Jumping, Climbing
Sailing, Gliding, Parachuting, Flying, Dispersal of seeds
Cooking, Cleaning, Reading, Writing, Sleeping
Skiing, Skating, Snowboarding, Ice Hockey, Bobsledding
How do plants and animals help each other in the exchange of gases in the atmosphere?
Plants and animals produce oxygen and carbon dioxide
Plants produce carbon dioxide and animals produce oxygen
Plants and animals do not help each other in the exchange of gases
Plants produce oxygen and animals produce carbon dioxide
