Question

Which of the following is true about forests?

• A. If there are no more forests, there would be less floods and less soil erosion.
• B. In the absence of forests, animals will get more food and shelter.
• C. No forests means less oxygen in air and it will lead to global warming.
• D. No forest means more of rain fall and will decrease the green house effect.

Answer 1

The correct option is C

No forests means less oxygen in air and it will lead to global warming.

Trees are responsible for taking in oxygen and releasing carbon dioxide during the day time. In the absence of forests, the oxygen concentration in the atmosphere will reduce and amount of carbon dioxide which is a geeenhouse gas will increase. The carbon dioxide that accumulates in the atmosphere insulates the surface of the Earth. It holds the heat. This increases the Earth's surface average temperature, heats the oceans and melts polar ice. More carbon dioxide will contribute to global warming.