National Science Olympiad Forum By SOF Olympiad Trainer - Page 744

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 6
D

Ans 2:

Class : Class 3
It’s mosquito..it sucks blood so answer is A

Ans 3:

Class : Class 4
I’m saying the same term of Anush nikam

Ans 4:

Class : Class 4
C'mon . In correct answer they are showing B and in solution they are showing A . I mean , at least somebody should check the system for errors

Ans 5:

Class : Class 4

Ans 6:

Class : Class 3
The correct ans is D

Ans 7:

Class : Class 7

Ans 8:

Class : Class 5
Its a Mosquito. It sucks blood. The answer is A.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
ans is d

Ans 2:

Class : Class 5
D

Ans 3:

Class : Class 4
P is the molten part made up of nickel and iron(p is not molten). R is the hottest part of Earth which is solid( P is the hottest part of Earth which is solid).Q is connected to surface with the help of volcanoes( R actually has magma in it ). Minerals and oil deposits are found in the part S. and option D is only corect

Ans 4:

Class : Class 6
answer is d because core is innermost layer of earth so it could be made up of nicel and iron

Ans 5:

Class : Class 7
D

Ans 6:

Class : Class 1
I do not think that all answers and words of synopsis is correct

Ans 7:

Class : Class 5
D

Ans 8:

Class : Class 7
d correct ans

Ans 9:

Class : Class 6

Ans 10:

Class : Class 8
Class:Class:Class:VERY HARD

Ans 11:

Class : Class 7
sof is dumb nearly all answers are given wrong

Ans 12:

Class : Class 9
D drives me crazy

Ans 13:

Class : Class 8
No, the inner core is actually made up of iron and nickel.

Ans 14:

Class : Class 4
The answer is {D}

Ans 15:

Class : Class 5
no c is correct ans

Ans 16:

Class : Class 7
The answer is D

Ans 17:

Class : Class 7
ANSWER IS 'D'

Ans 18:

Class : Class 6
ans d

Ans 19:

Class : Class 3
you fools i found the correct answer d

Ans 20:

Class : Class 1

Ans 21: (Master Answer)

Class : Class 1

Ans 22:

Class : Class 7
a c d are correct

Ans 23:

Class : Class 5
P is made up of iron so a is wrong

Ans 24:

Class : Class 6
D

Ans 25:

Class : Class 5
answer is D

Ans 26:

Class : Class 5
ans is d

Ans 27:

Class : Class 5
you all are mads. D , A are correct options

Ans 28:

Class : Class 8
A and D. are the correct answer

Ans 29:

Class : Class 4
Answer is = D

Ans 30:

Class : Class 8
Correct option is D because mineral deposits are found on the crust of the Earth

Ans 31:

Class : Class 5
they give two answer correct and but one of the two are the right answers

Ans 32:

Class : Class 8
you are correct it doesnt update it self every year

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 5
B B B B B B . B B B B B B BB BB B B B B B . IS THE ANSWER

Ans 3:

Class : Class 6
i think it should be B..as ash acts as a fertilizer.

Ans 4:

Class : Class 8
Answer must be B as it is organic and increases soil fertility.

Ans 5:

Class : Class 8
a is correct because there willbe soil erosion without trees

Ans 6:

Class : Class 5

Ans 7:

Class : Class 5
The question and choices given are a bit tricky. The correct answer is A because the language of (iv) is deceptive and says "new trees will grow quickly to replace the burnt ones". You have to understand that "new trees" won't grow quickly, you can only sow small plants not trees.

Ans 8:

Class : Class 6
I think the answer should be b as after a forest gets destroyed by a forest fire ,new trees will grow as the remain of the trees will decompose and make the sol fertile.

Ans 9:

Class : Class 9
Ash is an organic matter so the answer should be B

Ans 10:

Class : Class 8
WHAT! B is correct, not A. The answer is B, NOT A!

Ans 11:

Class : Class 7
i think the answer should be B because the statement 'New trees will grow quickly to replace the burnt ones as the ash of the burnt trees will make the soil more fertile' is also true

Ans 12:

Class : Class 7
The answer should be B.

Ans 13:

Class : Class 5
How ??? It should be b.As ash is an organic matter. the process of nitrogen fixation will make the soil fertile . Please tell .Why????

Ans 14: (Master Answer)

Class : Class 1

Ans 15:

Class : Class 5
The correct answer is Bthis time I think SOF is wrong

Ans 16:

Class : Class 4
I think B is the correct answer

Ans 17:

Class : Class 5
yes B is the answer as the ash contains minerals from the other trees.. i agree that the process of nitrogen fixation will make the soil fertile.........

Ans 18:

Class : Class 7
I agree with Ishan as trees cannot grow very quickly...But I did B at my first attempt

Ans 19:

Class : Class 7

Ans 20:

Class : Class 7
Harry?! What a fake! Harr potter is an adult!

Ans 21:

Class : Class 9
B is the correct answer

Ans 22:

Class : Class 5
It is certainly B as ashes of any organic matter makes soil fertile.

Ans 23:

Class : Class 7
THe AntwerpThe answer is (A) because if forest fire occurs there will not be any trees and soil erosion can happen and All the ashes including soil may erode and then how can it make the soil fertile

Ans 24:

Class : Class 2
ddddddd

Ans 25:

Class : Class 6
B should be the correct answer

Ans 26:

Class : Class 7
B is the answer!

Ans 27:

Class : Class 9
Answer is B as ash is an organic

Ans 28:

Class : Class 5

Ans 29:

Class : Class 10
I agree ,B is the correct answer

Ans 30:

Class : Class 8
B IS THE CORRECT ANSWER AS BURNING OF WASTE CROPS AFTER HARVESTING OF GRAINS IS STANDARD METHOD OF INCREASING SOIL FERTILITY

Ans 31:

Class : Class 5
BBBBBBBBBBBBBBBBBB IT IS THE CORRECT ANSWER I AGREE WITH THE OTHERS

Ans 32:

Class : Class 7
the answer is B.

Ans 33:

Class : Class 7
SOF is giving wrong answers ! Does it ever thinks that by reading wrong things , we can get lesser marks in our exams ?!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Ans 34:

Class : Class 9
Actually, forest fires lower the level of nitrogen in the soil. Since nitrogen quantities in the soil is extremely important for plant growth, lowered level of nitrogen is a big barrier in plant growth

Ans 35:

Class : Class 9
I think the answer is B

Ans 36:

Class : Class 9
I think B is correct option as ash acts as a fertilizer for plants (even if in small quantities). Master Answer (Admin, Revisewise) EXPLAIN the answer to all of us.

Ans 37:

Class : Class 6
Come on Snigdha! The CORRECT ANSWER IS (B)! Ash makes soil fertile 'cause it's organic , dude! How will trees not grow?(P.S.- please don't think about Ash in Pokemon. Please, don't)🤦‍♂️🤦‍♂️

Ans 38:

Class : Class 7
BBBB IS THE ANSWER

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
ANSWER-C

Ans 2:

Class : Class 8
Answer: C

Ans 3:

Class : Class 5
answer b

Ans 4:

Class : Class 5
Answer-C

Ans 5:

Class : Class 6
C

Ans 6:

Class : Class 8
Answer: C

Ans 7:

Class : Class 9

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
The answer is (c) Condition 1- There should be an area which includes all the shapes [options (b), (c) and (d) satisfy this condition] Condition 2- There should be an area which includes only the circle and triangle [only option (c) satisfies this condition] Therefore option (c) is correct

Ans 2:

Class : Class 8
option d is the correct answer

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