National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
C

Ans 2:

Class : Class 4
The answer is (D).

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
B

Ans 2:

Class : Class 9
The answer is B. The water conducts the heat from the iron ball and thus water's temperature will increase while the temperature of the ball will constantly keep decreasing as it is loosing heat. After sometime both the water and the ball come to equilibrium state i.e they have the same temperature. From then on the temperature will remain constant. AS graph in option B indicates an increase in temperature for a while and then constant temp It is correct

Ans 3:

Class : Class 9
The answer is B. The water conducts the heat from the iron ball and thus WATER'S temperature will increase while the temperature of the ball will constantly keep decreasing as it is loosing heat. After sometime both the water and the ball come to equilibrium state i.e they have the same temperature. From then on the temperature will remain constant. AS graph in option B indicates an increase in temperature for a while and then constant temp it is correct

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Answer is D

Ans 2:

Class : Class 10
Yes it is definitely D

Ans 3:

Class : Class 10
yes you're right answer is d

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
A

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
option c

Ans 2:

Class : Class 7
C

Ans 3:

Class : Class 7
option c

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Subject :NSO    Class : Class 4

Ten male animals each of type X and Y were living together for few months in captivity in a well defined area (full of greenery). Other types of animals were not present in this area. Then an animal Z was introduced in this area. After few days, their numbers were counted as shown here.

  X      Y      Z
  10      2     1
What does this indicate?
A Z is a carnivore.
B Y is a herbivore.
C X is a herbivore.
D All of these


Ans 1:

Class : Class 5
bhavya in opinion you are correct

Ans 2:

Class : Class 4
If Z is a carnivore sof then how did X population remains same ?

Ans 3:

Class : Class 5

Ans 4:

Class : Class 4
Y is a herbivore

Ans 5:

Class : Class 5

Ans 6:

Class : Class 5

Ans 7:

Class : Class 4
A

Ans 8:

Class : Class 4
Y is a herbivore

Ans 9:

Class : Class 5
is x a giraffe or a elephant

Ans 10:

Class : Class 4
I think X is carnivore and their(X

Ans 11:

Class : Class 4
But then (to continuation of solution) how did number of X animal remain the same?MASTER ANSWER from Revisewise Noida please EXPLAIN.

Ans 12:

Class : Class 4

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