Subject :NSO Class : Class 6
Subject :NSO Class : Class 7
Ans 1:
Class : Class 7
Small ears have less blood vessels. Blood vessels help radiate heat from the body. So less blood vessels in the small ears help reduce heat loss.
Ans 2:
Class : Class 9
Big ears will have a comparatively more blood supply. So it will have more heat loss also.
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 7
When a person breathes in, what happens to the diaphragm and to the rib cage?
Diaphragm | Rib cage | |
A | Becomes flatten | Moves downwards and inwards |
B | Becomes flatten | flatten Moves outwards and upwards |
C | Becomes more curved | Moves downwards and inwards |
D | Becomes more curved | Moves outwards curved and upwards |
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 6
Ans 3:
Class : Class 6
D is the correct answer because the revolution of moon around the earth causes high tides and low tides and tree doesn't grow everyday.
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Subject :NSO Class : Class 7