NCERT 9th Class (CBSE) Science: Improvement in Food Resources Quiz
20 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Improvement in Food Resources Quiz:
- Berseem, oats or Sudan grass are raised as food for the livestock, called fodder crops.
- By introducing a gene with required characters into a crop for its improvement is called genetically modified crop.
- The nutrients required by plants in larger quantity is called macro-nutrients. They are nitrogen, phosphorus, potassium, calcium, magnesium and sulphur.
- Due to short duration of crop growth, farmers can grow more crops in a year, and reduce the cost of drop production.