National Science Olympiad Forum By SOF Olympiad Trainer - Page 616

# User Forum

Subject :NSO    Class : Class 6

## Ans 1:

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

Subject :NSO    Class : Class 1

Class : Class 1
D

## Ans 2:

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

## Ans 3:

Class : Class 3
Ans: C

Subject :NSO    Class : Class 4

Class : Class 6

## Ans 2:

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

Class : Class 4
Awnswer is D

## Ans 4:

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 5:

Class : Class 7
hey you inknoledgeble (SOF)

## Ans 6:

Class : Class 7
A as D shows criss crossed lines and equator isn't like that

## Ans 7:

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.

## Ans 8:

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 9:

Class : Class 8

Subject :NSO    Class : Class 4

Class : Class 8

Class : Class 4
Ans A

Class : Class 7
C is the anwser

## Ans 4:

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 5:

Class : Class 9
the options C and D are same

## Ans 6:

Class : Class 5
Thanks so much Mohhika

Class : Class 4

## Ans 8:

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 9:

Class : Class 5
They will see somesh

Class : Class 8
C

Class : Class 8
c is right

Class : Class 4

## Ans 13:

Class : Class 5
a crowing will effect

## Ans 14:

Class : Class 6
No one will see mohhika

Class : Class 9

Class : Class 8
C

## Ans 17:

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

## Ans 18:

Class : Class 7
YAR AGAR NCO HOTA 2020 MEIN TO MAZA AATA KYON KI LAST YEAR MAIN THA WINNER

Class : Class 7

## Ans 20:

Class : Class 5
Answer is option C.!

Class : Class 5
C is correct

## Ans 22:

Class : Class 5
my C and D are same

## Ans 23:

Class : Class 5
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 24:

Class : Class 4
c answer is corect

## Ans 25:

Class : Class 7
C is the anwser

Subject :NSO    Class : Class 4

Class : Class 7

## Ans 2:

Class : Class 4
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 3:

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

Class : Class 4

Class : Class 3
the answer is A

Class : Class 4
Option a

Class : Class 9

## Ans 8:

Class : Class 3
I agree with harsh

## Ans 9:

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 10:

Class : Class 8
* 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 11:

Class : Class 8
Option ( A ) is correct because the graph shows that Photosynthesis best occurs at 35 degree Celsius

Class : Class 7
the answer is a

Class : Class 4

Class : Class 4

## Ans 15:

Class : Class 5
the answer can be a and d

## Ans 16:

Class : Class 5

Subject :NSO    Class : Class 4

Class : Class 7

Class : Class 4
Option c

## Ans 3:

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.

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

Subject :NSO    Class : Class 8

Class : Class 8
C is correct

## Ans 2: (Master Answer)

Class : Class 1
The correct answer is C.

## Ans 3:

Class : Class 10
the correct answer is C

Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 6

Class : Class 8

Class : Class 6
Yes

## Ans 3:

Class : Class 6
D and B both can be there.