Question

1. ______is growing of crops alternately.

• Mixed farming
• Crop rotation

2.Bacteria in root nodules of leguminous plants fix nitrogen.

•True
•False


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Answer 1

Crop rotation is growing of crops alternately.

Bacteria in root nodules of leguminous plants fix nitrogen.

True

Answer 2

Answer:

1) Crop rotation

Explanation - Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. It reduces reliance on one set of nutrients, pest and weed pressure, and the probability of developing resistant pest and weeds.

2) True

Explanation - Legumes use nitrogen fixing bacteria, specifically symbiotic rhizobia bacteria, within their root nodules to counter the limitation. Rhizobia bacteria convert nitrogen gas (N2) to ammonia (NH3) in a process called nitrogen fixation.