National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 7

Read the given statements and select the correct option.
Statement 1: The digested food is absorbed mainly in the small intestine.
Statement 2: The inner wall of small intestine contains numerous finger-like projections called villi.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 in not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.


Ans 1:

Class : Class 7
IT SHOULD BE ''B''. NONE OF THESE EXPLAIN EACH OTHER

Ans 2:

Class : Class 8
it should be b. it is no correct explanation

Ans 3:

Class : Class 7
Answer is A because the most important task of villi is the absorption of nutrients in small intestine.

Ans 4:

Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
ANS-D -both B and C

Ans 2:

Class : Class 4
But only nitrogen is used in fire extinguisher

Ans 3:

Class : Class 5
X

Ans 4:

Class : Class 7
ANS- D as nitrogen does support burning and carbon di oxide is used in fire extinguishers

Ans 5:

Class : Class 5
B

Ans 6:

Class : Class 5
B

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
the answer is cotton flower

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
They are example of lever

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Subject :NSO    Class : Class 7

In the given figure, two cars coming from town P are traveling with a speed of 65 km h–1. When they reach the cross road, one of the car turns towards town Q whereas the other continues forward towards town R. Both continue to move with the same speed of 65 km h–1.
Which of the following options is correct for given statements?

(i) Both cars have same velocities even if the car turns towards town Q.
(ii) Two bodies have same velocities if they are moving with same speed in different directions.

A Both (i) and (ii) are correct and (ii) is the correct explanation of (i).
B Both (i) and (ii) are correct but (ii) is not the correct explanation of (i).
C Only (i) is correct.
D Neither (i) nor (ii) is correct.


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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
ans is b

Ans 2:

Class : Class 3
B

Ans 3:

Class : Class 4
ans is b

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
a both plants and humans grow and reproduce

Ans 2:

Class : Class 4
growing and reprducing is done by both plants and animals so A is the correct answer

Ans 3:

Class : Class 3
D

Ans 4:

Class : Class 4
a both plants and humans grow and reproduce

Ans 5:

Class : Class 4
a both plants and humans grow and reproduce

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
if snake is removed then a and d will happen

Ans 2:

Class : Class 3
D

Ans 3:

Class : Class 4
if snake is removed then a and d will happen

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
ans is c 2 and 3 will happen

Ans 2:

Class : Class 4
ans is c 2 and 3 will happen

Ans 3:

Class : Class 4
ans is c 2 and 3 will happen

Ans 4:

Class : Class 4
ans is c 2 and 3 will happen

Ans 5:

Class : Class 3
C

Ans 6:

Class : Class 4
ans is c 2 and 3 will happen

Ans 7:

Class : Class 4
ans is c 2 and 3 will happen

Ans 8:

Class : Class 4
ans is c 2 and 3 will happen

Ans 9:

Class : Class 4
ans is c 2 and 3 will happen

Ans 10:

Class : Class 4
ans is c 2 and 3 will happen

Ans 11:

Class : Class 4
ans is c 2 and 3 will happen

Ans 12:

Class : Class 4
ans is c 2 and 3 will happen

Ans 13:

Class : Class 4
ans is c 2 and 3 will happen

Ans 14:

Class : Class 4
ans is c 2 and 3 will happen

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