National Science Olympiad Forum By SOF Olympiad Trainer - Page 601

# User Forum

Subject :NSO    Class : Class 8

Class : Class 8
A

Class : Class 8
A

## Ans 3:

Class : Class 9
The correct answer is B because manure is soluble in water but it is absorbed very slowly

Class : Class 8

## Ans 5:

Class : Class 10
it is A as fertilizers are soluble in water. You might have heard that fertilizers flow into the river and cause eutrophication it flows into river because it is soluble in water

## Ans 6: (Master Answer)

Class : Class 1
The correct answer is A.

Subject :NSO    Class : Class 8

Class : Class 9

Class : Class 8
ans : A

## Ans 3:

Class : Class 8

Subject :NSO    Class : Class 3

## Ans 1:

Class : Class 3
i m not getting the answer

## Ans 2:

Class : Class 8
D

Subject :NSO    Class : Class 6

## Ans 1:

Class : Class 6
throughout the time period or the 21 swings the pendulum will pass through the point Y 21 times. so the answer is B(t/21)

## Ans 2:

Class : Class 9
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## Ans 3:

Class : Class 6
It should be T/21 only as T is the total time and no of times it passes Y is 21.Therefore the answer is T/21

Class : Class 7
I agree with you

## Ans 5:

Class : Class 8
Hi The Answer is T/10Sub To my YT:SkyPeRtan Wolf

## Ans 6:

Class : Class 8
it should be t/10 only as during time period the pendulum will pass through the point y twice.so the time period will be t/10

Class : Class 8

## Ans 8:

Class : Class 6
it should be t/21

## Ans 9:

Class : Class 8
it should be t/10 only as during time period the pendulum will pass through the point y twice.so the time period will be t/10

## Ans 10:

Class : Class 8
Here, in this example, the pendulum passes through y 21 times. So, it will do 10 complete oscillations and 1 half which is basically touching y. Therefore, the time period of the pendulum is T/10.

## Ans 11:

Class : Class 4
yes I also agree with you

## Ans 12:

Class : Class 3
The answer is right - it should be T/10

Class : Class 9

## Ans 14:

Class : Class 8
it should be t/10 only as during time period the pendulum will pass through the point y twice.so the time period will be t/10

## Ans 15:

Class : Class 8
Yes it should be t/10 as the pendulum will pass through point y twice in its one revolution...... so the the time period should be t/10

Class : Class 6

## Ans 17:

Class : Class 7
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllloooooooooooooooooooooooooooooooooooooooooooooo

Subject :NSO    Class : Class 6

## Ans 1:

Class : Class 7
The answer can be B and D both.

## Ans 2:

Class : Class 7
I also agree with all of you . That's just impossible, I guess.

## Ans 3:

Class : Class 8
Answer is B because to turn Water vapour into ice you need Deposition but water vapour cannot be deposited that is why you first need to turn the water vapour to water by condensation and then to convert water to ice you need freezing . Hence answer B is correct

Class : Class 2

## Ans 5:

Class : Class 6
I do agree with Bhabani prasad

Class : Class 7
easy

## Ans 7:

Class : Class 6
gas to solid is deposition and opposite is sublimation ans wrong

## Ans 8:

Class : Class 6
The answer is not B

## Ans 9:

Class : Class 7
it is a direct change, so it does have to turn into liquid state

Class : Class 2

## Ans 11:

Class : Class 6
How in processes v condensation came?

## Ans 12:

Class : Class 8
I ALSO AGREE WITH YOU ALL

## Ans 13:

Class : Class 9
In process v, actually sublimation takes place

## Ans 14:

Class : Class 7
Guys you are wrong process name is deposition but you need to cool it to water then freeze it

Class : Class 7
NA

Class : Class 7
same

Class : Class 7
ya

Class : Class 6

## Ans 19:

Class : Class 6
We can express process v as deposition and how did condensation and freezing get involved

## Ans 20:

Class : Class 7
easyyyyyyyyy

Subject :NSO    Class : Class 5

Class : Class 7

## Ans 2:

Class : Class 8
The correct ans is option C because electrostatic force is a non contact force which is similar to magnetic force and the comb is like a magnet and tin pieces of paper are like the metal here (So the comb will attract the tiny pieces of paper).

Class : Class 5
The answer is C

Class : Class 7
yup

Class : Class 5
Class :C

## Ans 6:

Class : Class 7
I prefer option C

## Ans 7:

Class : Class 6
it can also be said as static electricity

Class : Class 8
The answer is C

## Ans 9:

Class : Class 5
C

Subject :NSO    Class : Class 5

## Ans 1:

Class : Class 9
The answer is D. Hair on skin and breast feeding the young ones are characteristic of mammals such as cow. So, if really existed, this animal would have been placed with cow.

Class : Class 4

## Ans 3:

Class : Class 8
Is cow have 6 legs and 1 eye on its forehead

## Ans 4:

Class : Class 7
This is impossible cow only as four legs and two eyes and those two are not on the forehead

Class : Class 5

## Ans 6:

Class : Class 7
As this question is already wrong a mammal can not have 6 legs.

## Ans 7:

Class : Class 4
If this animal really existed it would have to be a monster that would eat us

## Ans 8:

Class : Class 7
This is impossible because a cow has four legs not 6 legs and also it has two eyes not one eye and those two eyes are not on the forehead

Class : Class 8

## Ans 10:

Class : Class 5
how can we tell what group is that animal if that doesn't exist

## Ans 11:

Class : Class 8
this question makes no sense . 6 legs-can be an insect , eye on his forehead???

## Ans 12:

Class : Class 6
mammals do not have 6 legs and has more han 1 eye!

## Ans 13:

Class : Class 5
I can say that they have fur but they don't have 6 legs and 1 eye on the forehead

Class : Class 5
The answer is D

## Ans 15:

Class : Class 5
Firstly , mammals do not have three eyes, secondly which mammal has six legs ???????????

Class : Class 6
The answer is D.

## Ans 17:

Class : Class 5
Yes but in the question it said that the animal was imanginative can't believe what type of an animal it was.

## Ans 18:

Class : Class 5
ans is DBECAUSE IT IS A IMAGINARY ANIMAL

Class : Class 8

## Ans 20:

Class : Class 7
IDIOTS just listen to them or maybe they are wrong

Class : Class 9

## Ans 22:

Class : Class 8
Mammals do not have 3 eyes

## Ans 23:

Class : Class 8
If the animal really existed it would have belonged to the same group as cow.

Class : Class 4

## Ans 25:

Class : Class 8
Mammals do not have 3 eyes

Class :
Ans is D

Class : Class 5
Ans D ( Cow)

## Ans 28:

Class : Class 5
I thought this could be an insect as it HAS SIX LEGS. And some spiders( I know they are not insects ) have more than two eyes so it could be possible that the correct answer is b. But it has fur and is feeding its young one milk so the answer should be d

## Ans 29:

Class : Class 7
Idiots, the monster fed milk to its young, a feature seen only in Mammals

## Ans 30:

Class : Class 8
All report an error they give all wrong only

## Ans 31:

Class : Class 5
It can't be D as they do not have six legs. no option is correct. I will report error for it is NOOT D

Subject :NSO    Class : Class 5

## Ans 1:

Class : Class 8
ans should be c!!! I am reporting an error

## Ans 2:

Class : Class 10
CORRECT ANSWER SHOULD BE C

## Ans 3:

Class : Class 10
2 should be opaque and 1 transparent, or both opaque

## Ans 4:

Class : Class 8
The answer should be C. But answer is given B which is impossible.

Class : Class 5
how is it b

## Ans 6:

Class : Class 8
It explains c is the correct ans but on the front it says b. Someone please correct this. They cut my marks also.

## Ans 7:

Class : Class 7
In the solutions it is showing C as correct option but in front It is showing B as the answer to this question. please correct the answer.