Question

which is called green lungs of the earth

Answer 1

Answer:

Forests are called as the green lungs because they fix the carbon dioxide in the presence of sunlight and convert them into glucose by the process of photosynthesis. 

The reaction of carbon dioxide with water during this process releases oxygen as byproduct and glucose is formed. Thus forest replenishes oxygen in turn of carbon dioxide. Which is the basic source of survival of life on earth.

Forests also have important role in other Bio-cycles such as water cycle, oxygen cycle and carbon cycle.

Answer 2

Amazon rain forest

Explanation:

• Amazon rainforest is the most biodiverse regoin on earth.
• Billions of trees absorb tons of carbon dioxide every year and slow down the climate change along with producing 20% of earths oxygen.
• Hence it is called lungs of the earth.
• They provide the essential world environment service of continuously recycling CO₂ into O₂.