National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
d is the answer

Ans 2:

Class : Class 3

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
C is only rich in roughage b is rich in vitamins calcium phosphorus

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
as per me answer should be m

Ans 2:

Class : Class 6
maybe answer should be M why did they mark n

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3
bjbhjhjkjkjlklklklklklkjkjklhioheeedededhhdhdhduehduehduehduehd

Ans 4:

Class : Class 4
answer is B or C as from brick wall sound can't be heard also from vacuumsound can't be heard

Ans 5:

Class : Class 3
Answer is B as sound travels faster in water

Ans 6:

Class : Class 3
d

Ans 7:

Class : Class 2

Ans 8:

Class : Class 1

Ans 9:

Class : Class 3
The answer is C

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
C is correct

Ans 2:

Class : Class 5
c is correct

Ans 3:

Class : Class 5
From Athiya Mahapatra: Option)C As the beaker is covered in a black bag and Hydrilla being a plant cannot produce oxygen without sunlight. The water snail added to the concentration of oxygen by breathing out.

Ans 4:

Class : Class 4
a

Ans 5:

Class : Class 6
answer is c

Ans 6:

Class : Class 6
Both A and C are correct

Ans 7:

Class : Class 5
boooooooooooooooooooooooooooooooooooooothhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh aaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaannnnnnnnndddddddddddd ccccccccccccccccc iiiiiiiiiiiiiiiiiissssssssssssssss ccccccccccccccccccccooooooooooooooorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrreeeeeeeeeeeeeccccccccccttttttttttttt

Ans 8:

Class : Class 5
A and C

Ans 9:

Class : Class 5
It should be a because in option c the carbon dioxide produced by the snail will be absorbed by hydrilla and the oxygen produced by hydrilla will be used by the snail but in option a only carbon dioxide will be produced so option a is correct

Ans 10:

Class : Class 5
It should be both A and C .

Ans 11:

Class : Class 6
a and c

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
Option A is the correct answer because the picture of the given plant in the question is of a cotton plant of whose seed dispersal agency is wind. So, from the given options , as, Dandelion is the only one with same agency of seed dispersal, Option A is supposed to be the correct answer.

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
seeds in both dandelion and cotton are dispersed by wind

Ans 5:

Class : Class 6

Ans 6:

Class : Class 5
Option A is the correct answer because the picture of the given plant in the question is of a cotton plant of whose seed dispersal agency is wind. So, from the given options , as, Dandelion is the only one with same agency of seed dispersal, Option A is supposed to be the correct answer.

Ans 7:

Class : Class 6
Option A is the correct answer because the picture of the given plant in the question is of a cotton plant of whose seed dispersal agency is wind. So, from the given options , as, Dandelion is the only one with same agency of seed dispersal, Option A is supposed to be the correct answer.

Ans 8:

Class : Class 5
Option A is the correct answer because the picture of the given plant in the question is of a cotton plant of whose seed dispersal agency is wind. So, from the given options , as, Dandelion is the only one with same agency of seed dispersal, Option A is supposed to be the correct answer.

Ans 9:

Class : Class 5
Option A is the correct answer because the picture of the given plant in the question is of a cotton plant of whose seed dispersal agency is wind. So, from the given options , as, Dandelion is the only one with same agency of seed dispersal, Option A is supposed to be the correct answer.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
C

Ans 2:

Class : Class 5
the correct option is D

Ans 3:

Class : Class 4
you all are wrong because I wrote ans. b and it showed that my answer was correct

Ans 4:

Class : Class 4
answer is d

Ans 5:

Class : Class 4
Answer is 'D'.The premolars grind food.Rest all are wrong matches, only this is correct

Ans 6:

Class : Class 4
C

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
ans-b

Ans 2:

Class : Class 7
B

Ans 3:

Class : Class 5
The correct answer is B

Ans 4:

Class : Class 4
Bbbbbbbbbbbbbbbbbbb.

Ans 5:

Class : Class 5
From Athiya Mahapatra : Option)b as the gravitational pull of the moon is one-sixth of that of that which is of the Earth.

Ans 6:

Class : Class 5
From Athiya Mahapatra : Option)b as the gravitational pull of the moon is one-sixth of that of that which is of the Earth.

Ans 7:

Class : Class 4
B B B B B B

Ans 8:

Class : Class 5
answer is option b

Ans 9:

Class : Class 7
B

Ans 10:

Class : Class 5

Ans 11:

Class : Class 5
one sixth that is B

Ans 12:

Class : Class 5
From Athiya Mahapatra : Option)b as the gravitational pull of the moon is one-sixth of that of that which is of the Earth.

Ans 13:

Class : Class 5

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