Biology
Grade-7
Easy
Question
Scientists anticipate that without nitrogen fertilizers, we would lose up to ___________ crops.
- 90%
- Half
- One-third
- One-fourth
Hint:
Scientists anticipate that without nitrogen fertilizers, we would lose up to one-third of crops.
The correct answer is: One-third
- About one-third of vegetation will be lost without nitrogen
- Nitrogen is essential for cellular metabolism in plants but cannot be used as such
- Nitrogen fixation helps to convert atmospheric nitrogen into its derivatives which can be utilized by the plants
- The absence of nitrogen retards the growth of plants and causes chlorosis
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