Question

Question 3
List any three human activities which would lead to an increase in the carbon dioxide content of air.

Answer 1

Human activities which are responsible for adding carbon dioxide to the atmosphere are:
i) Respiration- both plants and animals release carbon dioxide to the atmosphere.
ii) Decomposition of organic wastes and dead bodies.
iii) Burning of fossil fuels like wood, coal, petrol, gas and kerosene.