National Science Olympiad Forum By SOF Olympiad Trainer - Page 459

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
1 can be either d or e. It depends if u look at top to bottom or vice versa

Ans 2:

Class : Class 8

Ans 3:

Class : Class 5

Ans 4:

Class : Class 6
Yeah

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Yes it is correct.

Ans 2:

Class : Class 6
The answer is D

Ans 3:

Class : Class 7
The answer is D because in container X after three hours due to the respiration of the there will be less O2 and more Co2.Nice question

Ans 4:

Class : Class 4
Yes option D is correct

Ans 5:

Class : Class 4
Blubbering blums

Ans 6:

Class : Class 4

Ans 7:

Class : Class 6
no

Ans 8:

Class : Class 2
The answer will be D as due to the breathing process of fish the dissolved oxygen in the water will be less and the carbon dioxide will be more as all living beings on earth take in oxygen and give out carbon dioxide while respiration.

Ans 9:

Class : Class 5
Ishit rai is correct

Ans 10:

Class : Class 4
I think it could be the B option

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5
Correct, banana stem is also edible.

Ans 2:

Class : Class 7
SO CONFUSING!!!

Ans 3:

Class : Class 6
answer will be c

Ans 4:

Class : Class 7
even banana stem is edible so how is the answer (A)?

Ans 5:

Class : Class 7
All of the options are wrong. None of them are correct. Option A has a slight inaccuracy regarding the banana stem, as it is edible, It is the closest to being correct

Ans 6:

Class : Class 6
No option is correct.

Ans 7:

Class : Class 8
it should be C

Ans 8:

Class : Class 8
answer is b

Ans 9:

Class : Class 7
Even in solution they gave A is wrong

Ans 10:

Class : Class 7
answer is not c as onion have fibrous root . the banana stem is only eaten in india

Ans 11:

Class : Class 6

Ans 12:

Class : Class 6
None of the options are right as :a) bananas do have an edible stemb) radishes have a taproot systemc) onions have fibrous root system

Ans 13:

Class : Class 6
answer is a as radhish has reticulate venation and onions have fibrous roots

Ans 14:

Class : Class 6
answer is a

Ans 15:

Class : Class 7
None of the options are correct and the solution is also incorrect.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 3

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
good they should recheck every answer they put

Ans 2:

Class : Class 8
ans is B because, duckweed and water lettuce is nonflowering water plants.

Ans 3:

Class : Class 4
But y is the correct answer being shown as A??

Ans 4:

Class : Class 6
The answer is b,because duckweed and water lettuce are non-flowering floating plants,but in the picture there is a flowering floating plant and in the question there is written to choose the correct option similar to it.So, the answer is B.

Ans 5:

Class : Class 4
Well, they asked for a biological relationship, not a flowering/non-flowering relationship, so option A is correct. It's in the solution section.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
B

Ans 2:

Class : Class 2
B

Ans 3:

Class : Class 5
b

Ans 4:

Class : Class 6
ALL OPTIONS ARE CORRECT

Ans 5:

Class : Class 2
All are correct

Ans 6:

Class : Class 6
All are correct

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6
RAINWATER IS PUREST FORM OF NATURAL WATER

Ans 3:

Class : Class 7
Rain water is the purest form of water

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6
this

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9

Ans 2:

Class : Class 9
(D) opt as we can definitely capture image of virtual image when we take photo of the mirror and the virtual image is defined correctly

Ans 3:

Class : Class 8
Virtual images is NOT defined correctly, because in a plane mirror parallel rays of light stay parallel. There is no divergence, but it's still a virtual image formed. So the correct answer should be both statements are false, which isn't an option for some reason

Ans 4:

Class : Class 3
both r not correct

Ans 5:

Class : Class 8
the correct answer is (b) as a virtual image cannot be captured on a screen which means it cant be photographed so statement 1 is correct and a virtual image is formed by a convex mirror and It has diverging rays so a virtual image can also be defined as an image formed by diverging rays so statement two is correct but the reason for first statement is that a virtual image cannot be captured on a screen so (b) is the correct answer

Ans 6:

Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
c as carbon dioxide is not used as a fertilizer

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