1. The possible supplies of nitrogen and phosphorous ions in the soil is exhausted as they are found as

2. Plant of cabbage consumes phosphorous from

3. This is not absorbed through soil

4. This is a major macronutrient, component of vitamins and enzymes

5. This macronutrients is a structural component of a cell wall activating the enzymes

6. This macronutrient checks the opening and closing of the stomata and decreases the water loss from leaves

7. Deficiency of this causes the death of root tips and stem

8. Mustard’s sinigrin pungent principle can be attributed to

9. This essential element is not a constituent of any enzyme however triggers the activity of many enzymes

10. Carbon is made available to crop plants in this form