Subject :NSO Class : Class 7
Subject :NSO Class : Class 5
Ans 1:
Class : Class 4
Monika powerful tail does not mean a heavy tail and also birds need to have a powerful tail so that they can change the direction of their flight
Ans 6:
Ans 8:
Class : Class 9
Are you kidding me how is the answer D birds have a streamlined body and a strong tail just like fishes but how is it wrong
Ans 15:
Class : Class 5
In the solution, they show that a strong tail is gonna hinder flight. Seriously, guys? It's a no brainer, and if it hasn't been taught in school, logical reasoning can be applied. Of course a strong tail would be heavier. Why not? If a person is strong, he is heavy. It's simple- more mass= more weight. Come on. Everyone knows this. It's just logic science!
Ans 22:
Class : Class 7
guys how is it C ? has this not been taught to you in school?this is a simple no brainer question ,the right answer is d according to me .please revise it once
Ans 26:
Class : Class 5
The Answer is C. Birds do have a streamlined body to help them in flying, but they do not have a powerful tail.
Ans 30:
Class : Class 5
The correct option is D and I have proof:-Streamlined body of birds help them to move easily through the air while flying. It reduces the air resistance during flying.There are only a few muscles in the trunk and the tail, but they are very strong and are essential for the bird.Powerful = Strong
Ans 33:
Class : Class 9
Answer is cHow can it be d?How can the birds have powerful tail?If they had, they wont be able to fly up in the sky with heavy bodies.
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 2
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Subject :NSO Class : Class 6
Fill in the blanks with most appropriate option.
Although a number of objects, such as kites, birds, aeroplanes move in space, but their shadow is not seen on the earth. This is due to the reason that the (i), the region of complete (ii) is not able to reach the earth. The region of partial (iii), that is the (iv) reaching the earth is too large and too faint to be visible to us.
| (i) | (ii) | (iii) | (iv) | |
| A | Penumbra | Darkness | Brightness | Umbra |
| B | Penumbra | Brightness | Darkness | Umbra |
| C | Umbra | Darkness | Brightness | Penumbra |
| D | Umbra | Brightness | Darkness | Penumbra |
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Subject :NSO Class : Class 2
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Subject :NSO Class : Class 9
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Subject :NSO Class : Class 9
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Subject :NSO Class : Class 9
Ans 2:
Class : Class 9
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Subject :NSO Class : Class 4
