National Science Olympiad Forum By SOF Olympiad Trainer - Page 329

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
why

Ans 2:

Class : Class 6
answer is d only.it is right

Ans 3:

Class : Class 6
Answer is B 1.92 sec

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Answer is. A . correct explanation is on the answer .metals expand on heating !

Ans 2:

Class : Class 6
Hey! They have given contract see properly!

Ans 3:

Class : Class 7
Bro in option A it says CONTRACTION IN HOT WEATHER not EXPANSION IN HOT WEATHER. Read carefully

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Small Intestine

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
Plants grow well in loamy soil so the option A should have loamy soil as the correct answer.

Ans 2:

Class : Class 7

Ans 3:

Class : Class 3
Plants grow well in it since they can retain water and are loosely held

Ans 4:

Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5
Polybags can never be incinerated ! pls check answers and dont confuse students

Ans 2:

Class : Class 10

Ans 3:

Class : Class 5
Therefore none of the answers are right because tea leaves and polybags are are never incinerated

Ans 4:

Class : Class 7

Ans 5:

Class : Class 7

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9
are forests and minerals really exhaustible resources?

Ans 3:

Class : Class 8
How can cow dung cakes and forests and minerals be an exhaustible resource as cow dung cakes are available in abundance and it will be available till all the cows on the earth die and sane goes for the forests. Minerals are also available in abundance and they are definitely inexhaustible.

Ans 4:

Class : Class 7
how is cow dung cake an inexaustible resource?

Ans 5:

Class : Class 7

Ans 6:

Class : Class 7
Forests and Minerals are DEFINETELY exhaustible resources, but Cow Dung Cakes are also exhaustable.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
The correct answer is B.

Ans 2:

Class : Class 5
B

Ans 3:

Class : Class 1
B

Ans 4:

Class : Class 3
Beena, Ashu and Shuchi because Kiwi, Ostrich, Emu cannnot fly Penguins have a thin coat of feathers All birds lay eggs THEY ALL HAVE BEAKS AND A BACKBONE

Ans 5:

Class : Class 2
B

Ans 6:

Class : Class 7
B

Ans 7:

Class : Class 3
b

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Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

C

When a bomb explodes, chemical energy stored in the chemicals that form the bomb converts into heat, sound and light energy.


Ans 2:

Class : Class 7
CWhen a bomb explodes,chemical energy stored in the chemicals that form the bomb converts into heat, sound and light energy.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 7
Silver turns black, not green. And also silver does not react with water. So, obviously D is the answer.

Ans 3:

Class : Class 8
Silver can also react with SO2, sulphur dioxide, to tarnish.

Ans 4:

Class : Class 9
ans D is the correct answer as silver turns black after reaction to hydrogen sulphide

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
20 mL multiplied by 10 equals 200 ml.. likewise, multiply 1 min by 10. the answer is 10 minutes or 600 seconds.

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7

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