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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
It is reversible and chemical because salt has sodium and chlorine and water has hydrogen and oxygen so different item formed It is reversible because you can separate them by evaporating the water

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Gravitational force decreases when altitude increases as gravity is inversely proportional to square of distance that separates earth and the body

Ans 2:

Class : Class 9
this is wrong

Ans 3:

Class : Class 9
How can gravitational force increase with altitude?

Ans 4:

Class : Class 9

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5
Option c

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
C

Ans 2:

Class : Class 4
C

Ans 3:

Class : Class 4
C

Ans 4:

Class : Class 3
C

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Answer will be C, not D

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
The correct answer is option D

Ans 2:

Class : Class 7
Plants perform photosynthesis because they need to prepare their food and during night time they respire to break down the prepared food. In seeds food is already prepared and stored in the cotyledons and a seed only needs to break it down(so they respire producing co2). this co2 increases the temperature in the flask.

Ans 3:

Class : Class 7
Plants perform photosynthesis because they need to prepare their food and during night time they respire to break down the prepared food. In seeds food is already prepared and stored in the cotyledons and a seed only needs to break it down(so they respire producing co2). this co2 increases the temperature in the flask.

Ans 4:

Class : Class 7
Plants perform photosynthesis because they need to prepare their food and during night time they respire to break down the prepared food. In seeds food is already prepared and stored in the cotyledons and a seed only needs to break it down(so they respire producing co2). this co2 increases the temperature in the flask.

Ans 5:

Class : Class 7
Plants perform photosynthesis because they need to prepare their food and during night time they respire to break down the prepared food. In seeds food is already prepared and stored in the cotyledons and a seed only needs to break it down(so they respire producing co2). this co2 increases the temperature in the flask.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
We could draw an imaginary line from C perpendicular to EC and parallel to AB dividing angle y into 2 parts and marking the point as R. Now RCA = CAB =22 as they are alternate interior angles & RCE = ECD = 90. So angle y will be equal to 90+22=112.

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