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WorksheetsChemistry
Total questions: 10
Worksheet time: 7mins
Why are the plants known as the lungs of the Earth?
They produce Nitrogen
They produce Carbon Dioxide
They absorb UV radiations
They produce oxygen which helps us to respire
What are the different ways in which the wildfires are caused?
Deforestation
Campfires
Burning of Dead leaves
Lightning
Asbestos fibre causes
(a)
Due to incomplete combustion of fossil fuels ----- is produced.
Carbon Monoxide
Carbon Dioxide
Sulphur Dioxide
Hydrogen Sulphide
How to reduce pollution?
Using public transports
Use of Air Condition instead of a fan.
Implement Afforestation
By constructing buildings
(a) is responsible for the discolouration of Taj mahal.
We should travel more by car than cycle to reduce air pollution.
True
False
What when mixed in air reacts with ozone and causes it to deplete?
(a)
Carbon monoxide combines with haemoglobin to form
Carboxyhaemoglobin
Deoxyribonucleic acid
Oxyhaemoglobin
Carbon Dioxide
Chemical released by our immune system causes the flu-like symptoms
True
False
