National Science Olympiad Forum By SOF Olympiad Trainer - Page 629

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 10

Ans 2:

Class : Class 3
Turmeric indicator remains yellow in acidic (vinegar) and neutral solutions (common salt solution) and turns red in basic solution (soap solution and baking soda).

Ans 3:

Class : Class 8
The whole statement isn't mentioned

Ans 4:

Class : Class 8
d is grammatically incorrect

Ans 5:

Class : Class 4
d is incomplete

Ans 6:

Class : Class 7
D is an incomplete option

Ans 7:

Class : Class 9
Where is D?

Ans 8:

Class : Class 10
the answer is d

Ans 9:

Class : Class 3
so it is both b and c now ok guys.

Ans 10:

Class : Class 9
d is an incomplete answer

Ans 11:

Class : Class 7
They have not written: Both B and C in the D option. Whereas, B is important in the D option.

Ans 12:

Class : Class 10
D IS INCOMPLETE OPTION.

Ans 13:

Class : Class 7
d is incomplete

Ans 14:

Class : Class 9
D is incomplete answer

Ans 15:

Class : Class 7
D is an incomplete option

Ans 16:

Class : Class 7
please explain

Ans 17:

Class : Class 3

Ans 18:

Class : Class 7
the last option is not understandable

Ans 19:

Class : Class 8
OPTION D SHOULD BE ''BOTH B AND C

Ans 20:

Class : Class 7
D is an incomplete option .

Ans 21:

Class : Class 7
the last option is incomplete the complete option should be Both B and C

Ans 22:

Class : Class 10
Yes,it is wrong. Incomplete option

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
nope you are telling the opposite

Ans 2:

Class : Class 7
When it's inside a volcano, it's called magma. When it's out, it's called lava.

Ans 3:

Class : Class 10
the answer is b

Ans 4:

Class : Class 10
I feel the (B) should be the correct answer, so please explain why (C) is the correct one.

Ans 5:

Class : Class 4

Ans 6:

Class : Class 10
Sorry, I had was to mark this one only, but instead of (C), I clicked on (B)!

Ans 7:

Class : Class 6
Volcano is an opening on the surface of Earth’s crust. There are three types of volcanoes: (i) Active volcanoes are those which are currently erupting or have erupted in the last 10,000 years. (ii) The dormant volcanoes are in a state of sleep. This means that they had erupted in the past but can erupt again, however, at the moment they are asleep. (iii) Extinct volcanoes are those that have been inactive for thousands of years and are not expected to erupt again. The liquid that comes out of a volcano is called lava. Richter scale measures magnitude of earthquakes and was developed by Charles Richter in 1935.

Ans 8:

Class : Class 7

Ans 9:

Class : Class 10
The answer is (C), but (B) can also be the answer.

Ans 10:

Class : Class 7
ok

Ans 11:

Class : Class 5
From Athiya Mahapatra: option)c As the Upper layer of Earth is called Crust. The liquid which flows outside a volcano is called lava and Richter Scale is used to measure intensity of earthquakes.

Ans 12:

Class : Class 6
nope you are telling the opposite

Ans 13:

Class : Class 7
Totally agree with you Mannat

Ans 14:

Class : Class 10
ans should be b

Ans 15:

Class : Class 1
The correct Ans is B and I did B but SOF is telling me I did C. Impossible and I am telling the truth I swear.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
First of all, fish, crocodile and snakes, all these three are egg laying animals. Secondly, all of them are cold blooded animals. And thirdly, all of them are covered with scales. And therefore, statements 1, 2 & 3 are correct. That is why option C is correct.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
got a little confused here but sorted it out

Ans 2:

Class : Class 6
Ans is C because 0 minutes was 20 degrees celsius. Then, we were adding 6 after 2, 4, 6 minutes and so on. 1 is half of 2, and 1+2=3. So we should take normally 26 degrees celsius+(Half of 6) degrees celsius=26 degrees celsius+3 degrees celsius=29 degrees celsius.

Ans 3:

Class : Class 6
YOYOYOYOOOO

Ans 4:

Class : Class 5

Ans 5:

Class : Class 8
syu

Ans 6:

Class : Class 2

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Novosti

Ans 2:

Class : Class 7

Ans 3:

Class : Class 5
Fishing rod changes speed of the fish

Ans 4:

Class : Class 6
Novosti

Ans 5:

Class : Class 5
Novosti

Ans 6:

Class : Class 9
Novosti

Ans 7:

Class : Class 8
urenrjrjkvnm

Ans 8:

Class : Class 7
Novosti

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10

Ans 2:

Class : Class 10
shouldnt it be a

Ans 3:

Class : Class 8

Ans 4:

Class : Class 4
It should be a

Ans 5:

Class : Class 8
please explain

Ans 6:

Class : Class 8

Ans 7: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
Answer is A (L) after the instruction the sequence is : N P S I L 4 W R 9 U F 7 S Y And then u get the answer

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7

Ans 2:

Class : Class 5
d

Ans 3:

Class : Class 5
Option D

Ans 4:

Class : Class 8

Ans 5:

Class : Class 7

Ans 6:

Class : Class 8
its [D]

Ans 7:

Class : Class 4
A

Ans 8:

Class : Class 4
The correct option is -(D)

Ans 9:

Class : Class 8
its [D]

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
chlorine and UV rays are tertiary treatment

Ans 2:

Class : Class 8
SLUDGE IS THE SOLID WASTE

Ans 3:

Class : Class 10
SCUM,SLUDGE.

Ans 4:

Class : Class 9
Sludge settles while scum floats .you are right

Ans 5:

Class : Class 8
yeah...sludge settles and scum floats.

Ans 6:

Class : Class 10
CSEDIMENTATIONSCUM.SLUDGE

Ans 7:

Class : Class 8
good

Ans 8:

Class : Class 10
Sludge settles down while scum stays up

Ans 9:

Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
D

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
,bbb,bbb,sing it is bbbb,

Ans 4:

Class : Class 5
no b not cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 5:

Class : Class 5
D

Ans 6:

Class : Class 5
it is B got it correct

Ans 7:

Class : Class 5
It is option C because hair and spines are different

Ans 8:

Class : Class 5
Class : its b easy

Ans 9:

Class : Class 5

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