National Science Olympiad Forum By SOF Olympiad Trainer - Page 593

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 10
the answer is (d), as calcium hydroxide is a base and it neutralises the effect of the acids in wastewater

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 1

Ans 3:

Class : Class 5
ANSWER IS A I WROTE IT WRONG IN FORUM IT SHOWS A BRUH ;-;

Ans 4:

Class : Class 2
Answer is d

Ans 5:

Class : Class 5
Aryaveer and shourya shinde, maybe it be a technical error. But you are right

Ans 6:

Class : Class 4

Ans 7:

Class : Class 6

Ans 8:

Class : Class 5
Answer is "A". Since there are technical glitches it shows it as "B"

Ans 9:

Class : Class 1

Ans 10:

Class : Class 9
1)When option 'a' choosed SOF shows option 'b' as correct answer and vica-versa. 2) In the book the correct answer is 'a' but over here it is showing as 'b'.

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Stomach will grind the food particles into smaller one and in small intestine only finally digestion will takes place and the nutrients will absorbed by blood.

Ans 2:

Class : Class 5
Small Intestine

Ans 3:

Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
It is plant P because if we compare 5 1/2cm with other measures, it will be the largest.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Guys!! Date palm grows in deserts. they are asking about a plant in hilly ares.

Ans 2:

Class : Class 8

Ans 3: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 4:

Class : Class 5

Ans 5:

Class : Class 8

Ans 6:

Class : Class 4
what is pollination

Ans 7:

Class : Class 1
D.

Ans 8:

Class : Class 6
My Answer is DPollination is when pollen of a plant travels from one plant to another by something (i.e.Insect and water). Pollens are used to grow seeds in the plant

Ans 9:

Class : Class 4
A

Ans 10:

Class : Class 5

Ans 11:

Class : Class 3

Ans 12:

Class : Class 5
I go with Jasnoor's option. A

Ans 13:

Class : Class 4
Option D

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 2:

Class : Class 9
but the ques is wrong........if a is sitting between g and c, how is c second to the right of a ???????

Ans 3:

Class : Class 10

Ans 4:

Class : Class 7
@sjash the question is trying to say that E is second to the right of a, not c

Ans 5:

Class : Class 7
DB

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
Both 'C' and 'D' are correct

Ans 2:

Class : Class 8
c and d

Ans 3:

Class : Class 7
Both option C and option D are correct as since it is moving in constant speed, it's acceleration will be zero and the direction will not change as it was not mentioned and the particle is travelling on a straight road

Ans 4:

Class : Class 10
not c i think

Ans 5:

Class : Class 8
Both C and D are correct

Ans 6:

Class : Class 9
both options "C" and "D" are correct in my opinion cause as the car is moving at a constant speed there is no acceleration and as the car is being ridden on a straight road direction of movement also does not change, Hence proving that both option "C" and "D" are correct. I hope my answer was helpful. A very Happy New Year to all

Ans 7:

Class : Class 9
Both C and D I prefer. SOF pls check

Ans 8:

Class : Class 7
option c is correct as acceleration means change of speed

Ans 9:

Class : Class 7
option c is correct

Ans 10:

Class : Class 10
D as it is mentioned that the particle is travelling at a constant speed

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 2:

Class : Class 9
I actually don't get the logic behind it

Ans 3:

Class : Class 7
Answer is (a). This is observed due to this reasonThere's a line which is making an angle 55° and is a linear pair. Hence the angle of line (mirror) p is 180°. But 55° is not the angle of incidence. To get the sum of angle of incidence and reflection, we multiply 55° by 2 and get 70°. Since angle of incidence =angle of reflection, 70°÷2=35°. The angle of incident ray and the reflected ray of P and Q are same thus the sum of the angle of incidence and angle of reflection would be the same (70°). We know, angle of incidence=angle of reflection, hence 70°÷2=35°. Or A=35°

Ans 4:

Class : Class 9
I am not able to understand it

Ans 5:

Class : Class 7
Here the properties of lines and angles will be applied.Then the laws of reflection

Ans 6:

Class : Class 7
The correct is C

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