National Science Olympiad Forum By SOF Olympiad Trainer - Page 421

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
Tricky

Ans 2:

Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 10
answer is A since speed of sound in air is more than that in water

Ans 3:

Class : Class 8
Yes its A

Ans 4:

Class : Class 9
Speed of light in water is less as compared to that of air as water is optically denser than air.

Ans 5:

Class : Class 8
The answer should be A but it is showing C

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5

Ans 2:

Class : Class 7
correct answer is D

Ans 3:

Class : Class 3
A

Ans 4:

Class : Class 5
Answer is D

Ans 5:

Class : Class 4
ANSWER IS ABCD

Ans 6:

Class : Class 4
Thank You !

Ans 7:

Class : Class 5

Ans 8:

Class : Class 9
d

Ans 9:

Class : Class 5

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
Option c X shows a tap root system while y shows a fibrous root system

Ans 2:

Class : Class 8
Option c

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Subject :NSO    Class : Class 4

Read the given statements and select the correct option.
Statement 1 : Snake and crocodile are cold blooded animals.
Statement 2 : Snake and crocodile breathe through moist skin mostly.

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


Ans 1:

Class : Class 6
A

Ans 2:

Class : Class 7
Can you tell the answer to this question please please!!!!

Ans 3:

Class : Class 6
B

Ans 4:

Class : Class 8
This is not correct answer!

Ans 5:

Class : Class 4
Let’s check the given statements and find if they are correct:Statement 1: Snake and crocodile are cold blooded animals. ----- Correct. Snakes and crocodiles are reptiles. Reptiles are cold-blooded animals, and cannot control their body temperature. They regulate their body temperature by lying in the sun to warm up, or moving into the shade to cool down.Statement 2: Snake and crocodile breathe through moist skin mostly. ----- Incorrect. Snakes and crocodiles breathe through lungs. That is where the exchange of gases takes place.That means Statement 1 is correct but Statement 2 is incorrect.Hence, the right answer of Option C.The correct answer is C.

Ans 6:

Class : Class 4
Ishit the answer is "C"

Ans 7:

Class : Class 6
C

Ans 8:

Class : Class 6
C

Ans 9:

Class : Class 7

Ans 10:

Class : Class 5

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
But Divya is also incorrect

Ans 2:

Class : Class 7
thanks

Ans 3:

Class : Class 8
Divya is wrong because she says denial or utilization and utilization is good use in the right amt which is the opposite.Richa is wrong because Chipko movement started in 1973.Nandini is wrong because the answer is soil erosion, not soil pollution.Therefore, the correct answer is C- Divya, Richa and Nandini all are wrong. Please check and fix it SOF.

Ans 4:

Class : Class 7
a

Ans 5:

Class : Class 8
Chipko movement was started in 1973 and not in 1972

Ans 6:

Class : Class 7
a

Ans 7:

Class : Class 7
answer is A I got it correct

Ans 8:

Class : Class 4
answer is c. divya- management is not complete denial but better, reduced and wiser user of forest products.Hence all three are wrong and answer is c richa- chipko movement started in 1973nandini- She is wrong. what she told is not soil pollution but soil errosion

Ans 9:

Class : Class 7
Answer.c chipko movement is started at 1973

Ans 10:

Class : Class 6
The right answer is C because conservation is not complete denial, chipko movement started in 1973 and it is not soil pollution but soil erosion.

Ans 11:

Class : Class 6
Ans is b

Ans 12:

Class : Class 8
actually,the answer is B. Chipko movement was started in 1973....and what nandini says in soil erosion and not soil pollution.so the answer is B

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
A

Ans 2:

Class : Class 3
A

Ans 3:

Class : Class 3
A

Ans 4:

Class : Class 7
A

Ans 5:

Class : Class 3
A

Ans 6:

Class : Class 4

Ans 7:

Class : Class 3
a

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
c

Ans 2:

Class : Class 3
C

Ans 3:

Class : Class 3
C

Ans 4:

Class : Class 7
C

Ans 5:

Class : Class 3
C

Ans 6:

Class : Class 3
c

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
C

Ans 2:

Class : Class 2
option C is correct one

Ans 3:

Class : Class 3
C

Ans 4:

Class : Class 3
C

Ans 5:

Class : Class 8

Ans 6:

Class : Class 3
D

Ans 7:

Class : Class 3
C

Ans 8:

Class : Class 3
C

Ans 9:

Class : Class 3
C

Ans 10:

Class : Class 3
C

Ans 11:

Class : Class 3
The D option is correct as none of the options are incorrect

Ans 12:

Class : Class 3
C

Ans 13:

Class : Class 3
C

Ans 14:

Class : Class 2
option C is correct one

Ans 15:

Class : Class 3
D

Ans 16:

Class : Class 3
D

Ans 17:

Class : Class 3
C

Ans 18:

Class : Class 3
C

Ans 19:

Class : Class 3
C

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