'Though oxygen is the supporter of life on earth, the presence of nitrogen in the atmosphere also contributes equally to the life processes on earth''. Justify the statement.

Explanation

To justify the statement that "Though oxygen is the supporter of life on earth, the presence of nitrogen in the atmosphere also contributes equally to the life processes on earth," we can break it down into several key points:

### Step-by-Step Solution:

1. **Understanding the Role of Oxygen**:
- Oxygen is essential for the process of respiration in living organisms. It is used by animals and humans to convert food into energy, which is vital for survival.

2. **Importance of Nitrogen**:
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