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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9
See...it has to be B as the bacteria doubles every minute...considering this if the cup is full at 60 minutes, it has to be half 1 minute ago, i.e, 59 minutes

Ans 3:

Class : Class 9
it should be 59 minutes as amoeba undergoes binary fission every minute. therefore,half of the jar will be filled in 59 minutes.after a minute it undergoes binary fission and fills the jar.

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 5
Hi all, The answer is B. As first, nitrate convert into nitrite i.e. X. Then by denitrifying bacteria, nitrite gets converted into atmospheric nitrogen i.e. Y. After decomposition of dead plants and animals, complex nitrogen gets converted into ammonia by ammonification i.e. Z.

Ans 2:

Class : Class 9
A is correct and.

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
FLLODS AND RUSTING OF IRON UNDESIREBALE CHANGES

Ans 2:

Class : Class 7
ANS : A

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Subject :NSO    Class : Class 6

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