CBSE Class-8 Science: Questions 33 - 39 of 469
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Question number: 33
Question number: 34
Animal husbandry means
Process of removing weeds by biological method
Branch of science deals with micro-organisms.
Protection of grains from birds, rats, insects etc.
Rearing of animals in farms or homes providing proper food, shelter and care.
Question number: 35
Question number: 36
Question number: 37
Question number: 38
Nitrification is the process of conversion of
Conversion of animals excretory product into ammonia
Conversion of nitrites and nitrates from soil back to air
Conversion of ammonia into nitrites then to nitrates
The process of conversion of free nitrogen into its compounds