Biology
Grade-7
Easy
Question
Which of the following elements is not obtained in the form of ions by most plants?
- Calcium
- Nitrogen
- Magnesium
- Phosphorus
Hint:
Along with sugars, this element forms the backbone of DNA.
The correct answer is: Phosphorus
- Phosphorous is important for the growth and metabolism of plants
- Phosphorous forms a part of the energy molecule called ATP
- Soil contains phosphorous in the form of rocks
- Phosphorous is artificially provided in the form of fertilizers, manures, etc
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