National Science Olympiad Forum By SOF Olympiad Trainer - Page 649

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
I was thinking about body building food

Ans 2:

Class : Class 3

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 2:

Class : Class 8
A

Ans 3:

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 4:

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

Ans 5:

Class : Class 8
A

Ans 6:

Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
ans : A

Ans 3:

Class : Class 10

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
i m not getting the answer

Ans 2:

Class : Class 8
D

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
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

Ans 2:

Class : Class 6
it should be t/21

Ans 3:

Class : Class 4
yes I also agree with you

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 7
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllloooooooooooooooooooooooooooooooooooooooooooooo

Ans 7:

Class : Class 7
I agree with you

Ans 8:

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

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 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 12:

Class : Class 10
smsmsmsmsmmmsmsmsmsmsmsmsmsmsmfjjjjjjjjjjfjjfjfjfjfjfffffffffffffffyhhhhhhhhhhhhhhhhhhhhhhhhhhhhyhhhhhhhhhhyyyyyyyyyyyyyyyyujjjjjjjjjjjjjjjjikkkkkkkkkkkkkkkkkkkkkkkloooooooooooooooyhhhhhhhhhhhhhhhhbggggggggggggggghndcccccccccccccccccccchndcccccccccccccccccccccccccccedhyncccccccccccccccccccccccccccccccccccccccccccccccccccccchynedcccccccccccccccccccccccccchdenyccccccccccccedyhncccccccccccccccccccccccyyyyyyyyyyyyyyyyyyyyyyyyyyyyyydheycnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Ans 13:

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 6

Ans 16:

Class : Class 8

Ans 17:

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

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
same

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7
ya

Ans 4:

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

Ans 5:

Class : Class 8
I ALSO AGREE WITH YOU ALL

Ans 6:

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

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

Class : Class 7
easyyyyyyyyy

Ans 11:

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

Ans 12:

Class : Class 6
How in processes v condensation came?

Ans 13:

Class : Class 6
I do agree with Bhabani prasad

Ans 14:

Class : Class 6
The answer is not B

Ans 15:

Class : Class 2

Ans 16:

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

Ans 17:

Class : Class 7
NA

Ans 18:

Class : Class 6

Ans 19:

Class : Class 9
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

Ans 20:

Class : Class 7
easy

Ans 21:

Class : Class 2

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Subject :NSO    Class : Class 5

Ans 1:

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).

Ans 2:

Class : Class 5
C

Ans 3:

Class : Class 8
The answer is C

Ans 4:

Class : Class 5
Class :C

Ans 5:

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

Ans 6:

Class : Class 7
yup

Ans 7:

Class : Class 7

Ans 8:

Class : Class 7
I prefer option C

Ans 9:

Class : Class 6
6536e6w33346si7s7474r6ssxfge65eueskibidyohio fanomtax rizzler

Ans 10:

Class : Class 5
The answer is C

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 5
The answer is D

Ans 3:

Class : Class 5
Ans D ( Cow)

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 8
Mammals do not have 3 eyes

Ans 7:

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

Ans 8:

Class : Class 5
forehead? hahahahahahahahah

Ans 9:

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

Ans 10:

Class : Class 4

Ans 11:

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

Ans 12:

Class : Class 8
Mammals do not have 3 eyes

Ans 13:

Class :
Ans is D

Ans 14:

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

Ans 15:

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

Ans 16:

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

Ans 17:

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

Ans 18:

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

Ans 19:

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

Ans 20:

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

Ans 21:

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 22:

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

Ans 23:

Class : Class 4

Ans 24:

Class : Class 6
The answer is D.

Ans 25:

Class : Class 9
ydejkcdhbjxdjkdajkdsjhdasjhdajhsadhjdaj

Ans 26:

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

Ans 27:

Class : Class 4
how can we tell what group is that animal if that doesn't exist

Ans 28:

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.

Ans 29:

Class : Class 8

Ans 30:

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 31:

Class : Class 9
All report an error they give all wrong only

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
I could not find any logic in this answer. Can anyone explain it? THANS FOR READING!!!

Ans 2:

Class : Class 6
The guys who solved the paper and created this test was in hurry. So he did not take efforts to review his answers, hence many answers are wrong here. How will students trust on these guys?

Ans 3:

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

Ans 4:

Class : Class 8
the answer is c 'cause material 1 is transparent and material 2 is opaque. The solution also says c. Typing error. Thanks for reading

Ans 5:

Class : Class 10
CORRECT ANSWER SHOULD BE C

Ans 6:

Class : Class 8
ANSWER WILL BE 'C ' CAUSE THROUGH TRANSPARENT MATERIAL WE CANNOT SEE SHADOW OF A THING BUT THROUGH OPAQUE MATERIAL WE CAN SEE A THING'S SHADOW

Ans 7:

Class : Class 9
how is it B!?

Ans 8:

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

Ans 9:

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 10:

Class : Class 2

Ans 11:

Class : Class 4
and should be C and i did C cut now it is showing that i have done B!!

Ans 12:

Class : Class 9
Ans is c as you see light can't pass through material 2 and can pass through material 1. According to SOF ans b which mean light can pass through cardboard and can't through clear pastic sheet!!!!!. Please correct this SOF or it can be a typing mistake. Thanks for reading.

Ans 13:

Class : Class 7
The ans should be C.

Ans 14:

Class : Class 8
WHY YOU TYPE SO MANY C Ishaan

Ans 15:

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.

Ans 16:

Class : Class 6
never use sof trainer they know nothing

Ans 17:

Class : Class 4

Ans 18:

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

Ans 19:

Class : Class 5
correct ans is C

Ans 20:

Class : Class 6
Blunders made by SOF. PLEASE FIX THIS !!!!!

Ans 21:

Class : Class 5
howwwwwwww ccccccccccc

Ans 22:

Class : Class 5
answer is c sof is wrong

Ans 23:

Class : Class 6
The sol says ans is C but it correct ans is B.

Ans 24:

Class : Class 10
IF SOF CAN EXPLAIN THIS CORRECTLY, THEN I WILL STOP DOING PRACTICE OF ANY OLYMPIAD

Ans 25:

Class : Class 5
how is it b

Ans 26:

Class : Class 5
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 27:

Class : Class 6
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 28:

Class : Class 5
There must be a technical issue because when I read the solution, it was written that the correct answer is C.

Ans 29:

Class : Class 4
The solution itself explains that c is the correct ans. So that means m2 is opaque and m1 is transparent. Please someone correct this ans

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
THE CORRECT ANSWER SHOULD BE 5492

Ans 3:

Class : Class 6

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