National Science Olympiad Forum By SOF Olympiad Trainer - Page 78

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Thank you for the explanation

Ans 2:

Class : Class 5

Ans 3:

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 4:

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.

Ans 5:

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

Ans 6:

Class : Class 6
But no spider species have 6 legs

Ans 7:

Class : Class 5

Ans 8:

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

Ans 9:

Class : Class 4
Keanna you are a copycat

Ans 10:

Class : Class 5

Ans 11:

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

Ans 12:

Class : Class 5
questio is wrong

Ans 13:

Class :
Most off your questions are wrong

Ans 14:

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

Ans 15:

Class : Class 6
But no spider species have 6 legs

Ans 16:

Class : Class 5
confusing question

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 10
kn

Ans 2:

Class : Class 10
kn

Ans 3:

Class :

Ans 4:

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 5:

Class : Class 10
kn

Ans 6:

Class :

Ans 7:

Class : Class 10
kn

Ans 8:

Class : Class 5

Ans 9:

Class : Class 4
The ans is A

Ans 10:

Class : Class 10
kn

Ans 11:

Class : Class 10
kn

Ans 12:

Class : Class 6
ans is b

Ans 13:

Class : Class 2
please explain the reasoning

Ans 14:

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

Ans 15:

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

Ans 16:

Class : Class 10
wth

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Because Riya's statement says that all roots are below the ground but the roots of mangroves are above the ground

Ans 2:

Class : Class 5
but all plants have roots below the ground

Ans 3:

Class : Class 4

Ans 4:

Class : Class 4

Ans 5:

Class : Class 8
Cuz every tree does not have to be evergreen Dum Dum!! Deciduous trees, tidal trees, and many more don’t have all green leaves!!! Evergreen trees do not shed their leaves and so look green throughout the year, but other non-always green trees shed their leaves and are not always GREEN !!!got it?

Ans 6:

Class : Class 8
No mangoves have roots above the ground I am talking to you Radiant

Ans 7:

Class : Class 7
because non green plants like "Indian pipe" are not in green. and they absorb their food from dead plants and animals

Ans 8:

Class : Class 6

Ans 9:

Class : Class 4

Ans 10:

Class : Class 7
Mangroves have aerial roots!

Ans 11:

Class : Class 6

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9
why d please explain

Ans 2:

Class :
D

Ans 3:

Class : Class 3
the answer can c or d.why cant it be c. pleas explain

Ans 4:

Class : Class 5
d!

Ans 5: (Master Answer)

Class :

Ans 6:

Class : Class 9
D only

Ans 7:

Class : Class 7
Why is the answer D ??

Ans 8:

Class : Class 9
D

Ans 9:

Class : Class 8

Ans 10:

Class : Class 9
D is correct as saliva is mainly water, helps makes it easier for us to swallow our food and softens our food so I got correct answer you people can also check in the solution......😄

Ans 11:

Class : Class 9
The answer is option D

Ans 12:

Class : Class 7
I agree with LavanyaIt should be D!

Ans 13:

Class : Class 8
IT should be B as tongue makes it easier to swallow food but it can be D too PLS. explain

Ans 14:

Class : Class 7
Its answer is option D because saliva is mainly water and it contains enzimes that softnes our food and makes it easier to shallow

Ans 15:

Class : Class 6
d

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
A. Dog star

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Subject :NSO    Class : Class 4

Ans 1:

Class :
D

Ans 2:

Class :
D

Ans 3:

Class : Class 7
both A and B . Means D

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Subject :NSO    Class : Class 4

Ans 1:

Class :

Ans 2:

Class :

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9
THE ANSWER IS D

Ans 2:

Class : Class 4
ANSWER D

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