National Science Olympiad Forum By SOF Olympiad Trainer - Page 670

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 3

Ans 2:

Class : Class 10
Option A says involuntary muscles are controlled by brain. It is correct as medulla controls all our involuntary actions. Option B and C are correct as the cardiac muscles are also called as smooth muscles, so statement d is incorrect as the muscles present in our arms and legs are called skeletal or voluntary muscles

Ans 3:

Class : Class 4
d

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
b is the correct answer.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
hello Aminesh Pathak Bhaiya.*he is older than me and i am older than you

Ans 2:

Class : Class 6
because the numbers on the opposite faces of a dice always add up to 7. and 5+2=7

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Subject :NSO    Class : Class 1

Ans 1:

Class : Class 1
D

Ans 2:

Class : Class 3
Ans: C

Ans 3:

Class : Class 1
1. Jaya said all natural things can breathe. All natural things cannot breathe. Mountain is natural but cannot breathe.2. Rati said all non living things can be moved ( they can move by themselves). No, not all living things can move. Train can move, but it can only move with human's power.3.Sonu said man made things can reproduce. No, man made things cannot reproduce so the answer is D as all of them are incorrect

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
A as D shows criss crossed lines and equator isn't like that

Ans 2:

Class : Class 5
Answer should be D because equator is not slanting but if we mix equator and axis of the earth it will be criss crossed.

Ans 3:

Class : Class 7
The correct answer is D because if you draw the axis and the equator, it will make a sign like a tilted x and the option that most relates to the shape we've received is option D(Master Answer)

Ans 4:

Class : Class 7
hey you inknoledgeble (SOF)

Ans 5:

Class : Class 5
Awnswer is D

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7
(MASTER ANSWER) NONE OF THESE SHOULD BE THE ANSWER

Ans 8:

Class : Class 9

Ans 9:

Class : Class 5
The earth is tilted on its axis and the equator divides the earth into northern hemisphere and Southern Hemisphere. So, if we just imagine to remove the planet and just leave the axis and equator, we will get an X. To visualise take a piece of paper and rool it into a ball and draw a in the middle. Then tilt it a bit and you will get a model of the earth. Then it forms a X. So the answer is D.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5

Ans 2:

Class : Class 4
I thought it was D. :(

Ans 3:

Class : Class 4
Ans A

Ans 4:

Class : Class 7
C is the anwser

Ans 5:

Class : Class 4

Ans 6:

Class : Class 5
a crowing will effect

Ans 7:

Class : Class 9

Ans 8:

Class : Class 9
the options C and D are same

Ans 9:

Class : Class 7
C is the anwser

Ans 10:

Class : Class 7
ahana bag, in option d the soil in more plants is less and in option c the soil in both the pots are same. Just wanted to tell that you might be blind!!

Ans 11:

Class : Class 7

Ans 12:

Class : Class 9
YAR AGAR NCO HOTA 2020 MEIN TO MAZA AATA KYON KI LAST YEAR MAIN THA WINNER

Ans 13:

Class : Class 5
C is correct

Ans 14:

Class : Class 4
SAKET is that u like do u do online classes if yes have u ever seen anyone by the name Aarvi Gosai and if no thenn ur NOT that Saket

Ans 15:

Class : Class 8
c is right

Ans 16:

Class : Class 9
C

Ans 17:

Class : Class 7
Dear friends, see the question and the options clearly.As they have said in the question, the experiment is on how overcrowding affects plant growth.For that, the conditions in which the plant(s) are growing should be the same. That means that the amount of sunlight, amount of water, amount of soil and condition of soil should be the same, whereas the number of plants growing in one pot, should not..As we are assured in the question, they are already giving the same amounts of sunlight and water to the plants.We only have to see that the amount and condition of soil is the same, and that, my friends, is only in option 'C'.So, that i.e option 'C', is the correct answer.

Ans 18:

Class : Class 5
They will see somesh

Ans 19:

Class : Class 7
Answer is option C.!

Ans 20:

Class : Class 5
Thanks so much Mohhika

Ans 21:

Class : Class 5

Ans 22:

Class : Class 5
Answer should be C because good soil means soil having essential nutrients and poor soil means the soil which is not having essential nutrients.In the option C,the checking of soil is by purity.In option D,the soil amount is different.

Ans 23:

Class : Class 4

Ans 24:

Class : Class 9
C

Ans 25:

Class : Class 8

Ans 26:

Class : Class 6
No one will see mohhika

Ans 27:

Class : Class 4
c answer is corect

Ans 28:

Class : Class 5
my C and D are same

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
the answer is a

Ans 2:

Class : Class 3
I agree with harsh

Ans 3:

Class : Class 5
Answer is A because the straight line shows in which temperature photosynthesis occurs best.

Ans 4:

Class : Class 9
Option ( A ) is correct because the graph shows that Photosynthesis best occurs at 35 degree Celsius

Ans 5:

Class : Class 5
Option a

Ans 6:

Class : Class 4

Ans 7:

Class : Class 5

Ans 8:

Class : Class 4

Ans 9:

Class : Class 9
* Harsh are you mad , the volume of oxygen collected at 15 degree Celsius is lower than the volume of oxygen collected at 40 degree Celsius *

Ans 10:

Class : Class 7

Ans 11:

Class : Class 5
the answer can be both a and photosynthesis happen best at 35 degree cand the volume of oxygen collected in 15dc is more than 45dc.

Ans 12:

Class : Class 5
the answer can be a and d

Ans 13:

Class : Class 3
the answer is A

Ans 14:

Class : Class 8
d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D

Ans 15:

Class : Class 10

Ans 16:

Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Answer is C because the graph is showing different levels of O2 in the atmosphere and Y has less oxygen in the atmosphere.

Ans 2:

Class : Class 7

Ans 3:

Class : Class 5
Option c

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Answer is D because Venus has the high amount of carbon dioxide which traps the heat of the sun.

Ans 2:

Class : Class 4
D

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