Biology · Nitrogen Cycle
With reference to the nitrogen cycle, consider the following statements: 1. Only a few types of organisms like certain species of soil bacteria and blue-green algae are capable of utilizing atmospheric nitrogen directly in gaseous form. 2. Generally, nitrogen is usable by plants only after it is fixed into usable compounds. 3. Only 1% of total fixed nitrogen on Earth is fixed biological nitrogen. Which of the statements given above is/are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11, 2 and 3
- 21 and 3 only
- 32 only
- 41 and 2 only✓
Correct answer
1 and 2 only
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