OBJECTIVE FORESTRY

Detailed explanation-1: -Tropical rainforests are often called the “lungs of the planet” because they generally draw in carbon dioxide and breathe out oxygen.

Detailed explanation-2: -The Amazon rainforests are also called ‘lungs of the planet’. It is called so as it produces a considerable part of the world’s oxygen.

Detailed explanation-3: -But although the Amazon rainforest is the largest expanse of forest on the planet, its contribution to the total production of oxygen is actually very small. Approximately 50% of all photosynthesis takes place in the oceans, thanks to phytoplankton and algae in the upper layer of water that receives sunlight.

Detailed explanation-4: -Andaman & Nicobar Tropical Rainforest: Andamans boast of several types of evergreen rainforest and has long been the subject matter of research for ecologists.