class 10 mcq science

15 These micro organisms fixes atmospheric nitrogen in the soil 1. rhizobium 2. nostoc, anabina 3. azatobactor 4. all

14 Nitrogen gas is present in the air around 1. 21% 2. 58% 3. 68% 4. 78%

13 The word vaccine comes from 'vaca' which means 1. cow 2. ox 3. hen 4. calf

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class 10 mcq science

16 Micro organisms present in root nodules of leguminous plants 1. rhizobium 2. bacillus 3. azatobactor 4. nostoc

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15 These micro organisms fixes atmospheric nitrogen in the soil 1. rhizobium 2. nostoc, anabina 3. azatobactor 4. all

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14 Nitrogen gas is present in the air around 1. 21% 2. 58% 3. 68% 4. 78%

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13 The word vaccine comes from 'vaca' which means 1. cow 2. ox 3. hen 4. calf

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