Question

2 possible reasons why the amount of carbon dioxide in the air can change. For 4th standard​

Answer 1

Answer:

carbon dioxide is added to the atmosphere

naturally by respiration decay and volcanoes combustion of fossil fuels, a human activity also

adds CO2 to the atmosphere

Answer 2

Answer:

• On Earth, human activities are changing the natural greenhouse.
• Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2).
• This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.