National Science Olympiad Forum By SOF Olympiad Trainer - Page 527

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Ans is C potato is stem and sugar cane also stem

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
yes ,you are rightans is c

Ans 4:

Class : Class 10

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
How is it C

Ans 2:

Class : Class 4
how about B

Ans 3:

Class : Class 7
B is not correct as it is gravity that causes objects to fall on the ground

Ans 4:

Class : Class 7
frictional force is answer prevents from slipping

Ans 5:

Class : Class 9

Ans 6:

Class : Class 8

Ans 7:

Class : Class 5
Yes how it can be C ?

Ans 8:

Class : Class 7
B is not correct as it is gravity that causes objects to fall on the ground

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Thank you for the explanation

Ans 2:

Class : Class 4
But no spider species have 6 legs

Ans 3:

Class : Class 4
Most off your questions are wrong

Ans 4:

Class : Class 4
Hey, some spider species have six legs, usually out of India. And the whole explanation is wrong.

Ans 5:

Class : Class 4
But no spider species have 6 legs

Ans 6:

Class : Class 4
The option D. is wrong. It mentions 3 pairs of wings whereas it should be 2 pairs of wings.

Ans 7:

Class : Class 5
confusing question

Ans 8:

Class : Class 5

Ans 9:

Class : Class 4
Oh my! thanks for solving my problem .

Ans 10:

Class : Class 5
questio is wrong

Ans 11:

Class : Class 6
Please explain more nicely and Keanna thank you for explaining

Ans 12:

Class : Class 4
Keanna you are a copycat

Ans 13:

Class : Class 5

Ans 14:

Class : Class 5

Ans 15:

Class : Class 7
A. P could be cold-blooded animal whereas R could be warm-blooded animal. ----- Frog has backbone, lays eggs and is a cold-blooded animal. So, P can be a Frog. Humans have backbone and hair, and they are warm-blooded. So, R can be a Human Being. So, this statement is Correct.B. Q could be six-legged animal whereas R could be four-legged animal. ----- Spiders have six legs and they lay eggs. So, Q can be a Spider. Horses are four-legged animals. They have backbone and hair. So, R can be a Horse. So, this statement is Correct.C. R could breathe through lungs whereas S could breathe through spiracles. ----- Dogs breathe through lungs, they have backbone and hair. So, R could be a Dog. Cockroaches breathe through spiracles. They have backbone and lay eggs, but they have no hair. So, S can be a Cockroach. So, this statement is Incorrect.D. P could have a pair of wings whereas Q could have two pairs of wings. ----- Birds have a pair of wings. They have backbone and they lay eggs. So, P could be a Bird. Most insects have two pair of wings, and they lay eggs. So, Q could be an Insect. So, this statement is Correct.Hence, the right answer is Option C.

Ans 16:

Class : Class 5
There is written on option D that Q could have three pair of wing but the question is wrong.There should be written two pair instead of three pair.Two pair is written on solution.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 10
kn

Ans 2:

Class : Class 4
ans is b

Ans 3:

Class : Class 4

Ans 4:

Class : Class 6
I did it with a guess and got it right somehow!

Ans 5:

Class : Class 4
The ans is A

Ans 6:

Class : Class 5

Ans 7:

Class : Class 10
kn

Ans 8:

Class : Class 10
kn

Ans 9:

Class : Class 2
please explain the reasoning

Ans 10:

Class : Class 7
OMG!How confusing!How did the others do it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 11:

Class : Class 10
kn

Ans 12:

Class : Class 10
kn

Ans 13:

Class : Class 4
Let’s study the given food-web carefully:The food-web is starting from P. So, P are plants (Producers). Q, T and U are eating these plants, so they are Herbivores (Primary Consumers). R are eating Q, and V are eating U, so they are Carnivores (Secondary Consumers). S are eating T as well as R

Ans 14:

Class : Class 4

Ans 15:

Class : Class 10
wth

Ans 16:

Class : Class 10
kn

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Answer can be A also as Q can be duck and P can be penguin and both of them have webbed feet and penguins live in places like Antartica.

Ans 2:

Class : Class 3
is it option C ?

Ans 3:

Class : Class 3
D

Ans 4:

Class : Class 9
d

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
B

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Why will it be D? It should be C, because the Vaseline blocks the stomata of the leaves, and thus blocks the surface for transpiration, so water droplets will not appear on those leaves, but the uncovered leaves were not stained or covered with anything, so the transpiration process in those leaves should stay normal.

Ans 2:

Class : Class 7
Why D?It should be option C .

Ans 3:

Class : Class 5
isn't the answer c

Ans 4:

Class : Class 8

Ans 5:

Class : Class 5

Ans 6:

Class : Class 6
Ans is C because like humans, plants also sweat. This is called transpiration.

Ans 7:

Class : Class 6

Ans 8:

Class : Class 7
C is the answer to this question because the leaves are uncovered

Ans 9:

Class : Class 3

Ans 10:

Class : Class 5
SOF, Isnt the answer C?

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
D

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Subject :NSO    Class : Class 3

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