Question

$C{O}_2$ is not a poisonous gas but there is increase in concentration of $C{O}_2$ in the atmosphere due to burning of fossil fuels and decomposition of limestone. The increase in concentration of $C{O}_2$ may lead to :

• A. increase in photosynthesis in plants
• B. higher concentration of $C{O}_2$ in water
• C. increase in greenhouse effect, thus raising the temperature
• D. increase in formation of metal carbonates

Answer 1

The correct option is C increase in greenhouse effect, thus raising the temperature

Since carbon dioxide is a greenhouse gas, an increase in the concentration of $C{O}_2$ will result in an increase in the greenhouse effect.

The level at which the greenhouse gas concentration gets stabilized does determine the warming effect, i.e. the temperature increase of the earth's surface and of the oceans, which might have serious consequences.

Hence, option $C$ is correct.