National Science Olympiad Forum By SOF Olympiad Trainer - Page 730

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
Plants donot directly absorb nitrogen from the atmosphere. They actually fix nitrogen in the soil with the help of symbiotic nitrogen fixing bacteria in their root nodules

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
skin ,nerves ,spinal cord ,brain,Spinal cord, Nerves, Hand is pulled back

Ans 2:

Class : Class 6
without brain how will we move

Ans 3:

Class : Class 5

Ans 4:

Class : Class 6
Spinal cord sometimes acts as brain

Ans 5:

Class : Class 3
The option 'B' is the correct answer.

Ans 6:

Class : Class 3
It can never be like that.

Ans 7:

Class : Class 3
The hand can't move without the signals of brain

Ans 8:

Class : Class 3
No Answer: D were is brain

Ans 9:

Class : Class 7
option B

Ans 10:

Class : Class 5
B - Skin → Nerves → Spinal cord → Nerves → Hand is pulled back

Ans 11:

Class : Class 5
yeeeeeeeeeeeessssssssssss!!!!!!!!!!!!!

Ans 12:

Class : Class 4
skin-nerve-spinal cord-brain-nerve-hand pulled back

Ans 13:

Class : Class 9
The answer B is correct because the Spinal Cord controls the Reflex Actions and if we touch a hot kettle and move our hand back, its a Reflex Action of course!!!

Ans 14:

Class : Class 8
how will the other parts get signal ?

Ans 15:

Class : Class 5
without brain there would be no reflex. Spinal cord is just a carrier through neurons..it's the brain which signals to pull back the hand from a hot kettle...not any other organs.

Ans 16:

Class : Class 5
without brain's indicator how nerves will pull hands?

Ans 17:

Class : Class 7
Where is brain

Ans 18:

Class : Class 7
spinal cord acts as brain sometimes hence option B is correct

Ans 19:

Class : Class 3
The option 'B' is the correct answer.

Ans 20:

Class : Class 9
it will be none of the above because there is no brain

Ans 21:

Class : Class 3
OH,Nooooooooooooooooooooooooooooooooooooooooooooooooooooooooo|

Ans 22:

Class : Class 5
nooo

Ans 23:

Class : Class 4
What about Brain?

Ans 24:

Class : Class 5
Confusinggggggggggggggggggggggggggggggg

Ans 25:

Class : Class 8
the brain should be there

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
c

Ans 2:

Class : Class 4
Asteroids are small, irregular lumps of rock that move in orbits around the Sun. Most asteroids lie in a vast ring between the orbits of Mars and Jupiter. This is called asteroid belt that holds millions of asteroids. Asteroids can be classified into two broad groups based on their composition and location-carbon rich asteroids dominate the outer part of asteroid belt whereas metal rich asteroids dominate the inner part of belt.

Ans 3:

Class : Class 8
Option C and A are both correct

Ans 4:

Class : Class 5

Ans 5:

Class : Class 7
Option C is the correct answer

Ans 6:

Class : Class 6

Ans 7:

Class : Class 8
It cannot be A as asteroids orbit the sun

Ans 8:

Class : Class 5

Ans 9:

Class : Class 10
option A is the correct answer

Ans 10:

Class : Class 5

Ans 11:

Class : Class 5
asteroids have a highly elliptical orbit unlike planets. planets have round orbits.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
the answer is orion but in laptop cassiopeia and orion are c so i clicked c but my answer is wrong

Ans 2:

Class : Class 7
orionit must have been a mistake to write c on both.

Ans 3:

Class : Class 9
I clicked d because Orion was the last but when the result came it was showing it wrong and it was marked like this your answer D correct answer D and it was showing wrong for me

Ans 4:

Class : Class 5
orion

Ans 5:

Class : Class 7

Ans 6:

Class : Class 7
ORION IS THE ANSWER TO THIS QUESTION

Ans 7:

Class : Class 8
Yes, the correct answer is Orion as Ursa Major, Ursa Minor and Cassiopeia are different in my iPads net. Don't worry I also got worried seeing the net but to me Orion is the right answer. Thank you.

Ans 8:

Class : Class 5
YES, it is indeed Orion the Great. Wrong answer was put in the system , but now it is corrected.

Ans 9:

Class : Class 7

Ans 10:

Class : Class 5
with my luck ,i did D

Ans 11:

Class : Class 8
click d they have done mistake

Ans 12:

Class : Class 7

Ans 13:

Class : Class 5

Ans 14:

Class : Class 10
Orion

Ans 15:

Class : Class 4
Orion Orion Orion Orion Orion Orion!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 16:

Class : Class 5
The correct answer is orion...error in the answer

Ans 17:

Class : Class 9

Ans 18:

Class : Class 6
It is Orion but it is showing c

Ans 19:

Class : Class 5
the answer is Orion but in laptop Cassiopeia and Orion are c so i clicked c but my answer is wrong. Same thing happened to me

Ans 20:

Class : Class 5
it is Orion luckily i did not see the option letter is wrong and clicked option D

Ans 21:

Class : Class 8
Pavitt Singh from Jodhamal Public Schoolthe correct answer is D

Ans 22:

Class : Class 7
YES,IT ISORION,THE GREAT

Ans 23:

Class : Class 5

Ans 24:

Class : Class 6
The answer is Ursa Major

Ans 25:

Class : Class 8
part c

Ans 26:

Class : Class 7
ORION

Ans 27:

Class : Class 5
It is very bad I said d but it landed on a for some reason

Ans 28:

Class : Class 7

Ans 29:

Class : Class 6
YES THE ANSWER IS ORION

Ans 30:

Class : Class 8
SOF has to work on it's technical glitches . mmm......

Ans 31:

Class : Class 7

Ans 32:

Class : Class 6
Orion

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 10

Ans 2:

Class : Class 6
the question is correct

Ans 3:

Class : Class 5
B

Ans 4:

Class : Class 1

Ans 5:

Class : Class 7
B

Ans 6:

Class : Class 5
The corerect answer is b google also said it

Ans 7:

Class : Class 7
B is the answer

Ans 8:

Class : Class 8
BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB

Ans 9:

Class : Class 6
The question is wrong

Ans 10:

Class : Class 6
B

Ans 11:

Class : Class 4
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 12:

Class : Class 5
(b) Planet Venus is the hottest planet in our solar system

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
yes, it is d!

Ans 3:

Class : Class 7
Yes Fareeha siddiqua the answer is D

Ans 4:

Class : Class 5
Venus and uranus rotate in clock wise direction but uranus is a gaseous planet so answer is D

Ans 5:

Class : Class 7

Ans 6:

Class : Class 9
Yes Fareeha siddiqua the answer is D

Ans 7:

Class : Class 5

Ans 8:

Class : Class 7

Ans 9:

Class : Class 5
a

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
what is gggggggggg you are mad?

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
you are fully mad ? 555

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 10
Mechanical force

Ans 2:

Class : Class 10
Mechanical Force

Ans 3:

Class : Class 9
The answer given by SOF is wrong so they have not given the solution to this question.

Ans 4:

Class : Class 1
I did C frictional force but SOF says it is D mechanical force. How is it mechanical force?

Ans 5:

Class : Class 8
how??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Ans 6:

Class : Class 8

Ans 7:

Class : Class 6
It is frictional force

Ans 8:

Class : Class 5
how?

Ans 9:

Class : Class 9
how is it mechanical force?

Ans 10:

Class : Class 5

Ans 11:

Class : Class 10
mechanical

Ans 12:

Class : Class 3
c is correct

Ans 13:

Class : Class 7
It is option C

Ans 14:

Class : Class 5

Ans 15:

Class : Class 5

Ans 16:

Class : Class 5

Ans 17:

Class : Class 2

Ans 18:

Class : Class 3
Can somebody explain why it is mechanical force ????

Ans 19:

Class : Class 5
I was about to get 10/10 this 1 made me lose it.

Ans 20:

Class : Class 5
It is mechanical

Ans 21:

Class : Class 5
How it is d???Shouldn't it be c

Ans 22:

Class : Class 6
actually it is contact force .But SOF is mad so it said the wrong answer but the correct answer is CONTACT FORCE

Ans 23:

Class : Class 10
mechanical

Ans 24:

Class : Class 10
How is it mechanical? Please explain

Ans 25:

Class : Class 8
how is it mechanical ????????????

Ans 26:

Class : Class 5
how???

Ans 27:

Class : Class 8
how is it mechanical?

Ans 28:

Class : Class 10
mechanical

Ans 29:

Class : Class 9

Ans 30:

Class : Class 7
the corect answer is C

Ans 31:

Class : Class 5
how???????????????????????????????????????????????????????????????????????????is mechanical?????????????????????????????????????????????????????????????????

Ans 32:

Class : Class 7
Mechanical force is the only correct answer .

Ans 33:

Class : Class 10

Ans 34:

Class : Class 8
How the answer is D . Mechanical force

Ans 35:

Class : Class 8

Ans 36: (Master Answer)

Class : Class 1
Mechanical Force.

Ans 37:

Class : Class 4
answer D

Ans 38:

Class : Class 7
push and pull are examples of mechanical force

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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