Question

short note on forests class 7 science​

Answer 1

Explanation:

Forests Maintain Balance between Oxygen and Carbon Dioxide

Plants in the forest release oxygen during photosynthesis. This provides all animals including us with oxygen to breathe and helps to maintain the ratio of oxygen to carbon dioxide in the atmosphere. That is why, forests are called green lungs.

Answer 2

A forest is a piece of land with many trees. Many animals need forests to live and survive. Forests are very important and grow in many places around the world. They are an ecosystem which includes many plants and animals.


We depend on forests for our survival, from the air we breathe to the wood we use. Besides providing habitats for animals and livelihoods for humans, forests also offer watershed protection, prevent soil erosion and mitigate climate change. Yet, despite our dependence on forests, we are still allowing them to disappear.

They provide ecosystem services that are critical to human welfare. These include:

•Absorbing harmful greenhouse gasses that produce climate change. In tropical forests alone, a quarter of a trillion tons of carbon is stored in above and below ground biomass
•Providing clean water for drinking, bathing, and other household needs
•Protecting watersheds and reducing or slowing the amount of erosion and chemicals that reach waterways
•Providing food and medicine
•Serving as a buffer in natural disasters like flood and rainfalls
•Providing habitat to more than half of the world’s land-based species.

Hope this will help you:)