Which of the following forests is known as the 'lungs of the planet earth'?

Options

A. Taiga forest
B. Tundra forest
C. Amazon rain forest
D. Rainforests of North-East India

Explanation

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks which forest is known as the 'lungs of the planet earth'.

2. **Analyze the Options**: Consider the options provided. The question implies that one of the forests has a unique role in oxygen production.

3. **Recall Key Information**: The Amazon Rainforest is widely recognized for its vast size and significant contribution to the Earth's oxygen supply.

4. **Understand the Significance**: The Amazon Rainforest is known to produce over 20% of the oxygen in the atmosphere, which is why it is referred to as the 'lungs of the planet'.

5. **Compare with Other Forests**: Other forests like taiga and tundra have lower productivity and biodiversity compared to tropical rainforests. They do not contribute as much to oxygen production.

6. **Conclude the Answer**: Based on the analysis, the correct answer is the Amazon Rainforest (Option C).

**Final Answer**: The forest known as the 'lungs of the planet earth' is the Amazon Rainforest.

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