National Science Olympiad Forum By SOF Olympiad Trainer - Page 516

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 10
its option b

Ans 2:

Class : Class 9

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
Hi, #Kavinkrishnan! Notice the sun's position with respect to the stick. If you notice (I) and (III) images are actually mirror-images. Figure (II) actually resembles the situation at noon. Hope you understood! :)

Ans 4:

Class : Class 8
i think the answer should be a

Ans 5:

Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
iron,gold,silver,water etc are some conducturs of electricity

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Subject :NSO    Class : Class 7

Read the given passage having some variables and few italicised words. Different respiratory organs are present in different organisms. X is the main respiratory organ in humans. Respiratory system of cockroach consists of small openings on the sides of its body called tracheoles which are connected to the tubes called tracheae that are further branched into spiracles. Scoliodon respires through Y which is richly supplied with blood vessels. Z is the main site of gaseous exchange in plants. Each Z is guarded by two kidney shaped subsidiary cells which are further flanked by specialised epidermal cells called guard cells.
Select the correct option regarding the words italicised in the given passage.

AThe positions of spiracles and tracheoles should be interchanged.
BThe position of tracheoles and tracheae should be interchanged.
CSubsidiary should not be replaced as it is correctly mentioned.
DGuard should be replaced by lenticel.


No words are italicised in this. How do you expect us to write answers when you make errors?

Ans 1:

Class : Class 9
Where are the italicised words?

Ans 2:

Class : Class 3
In cockroaches, small openings are present at the sides of the body called spiracles. Air enters through these openings and reaches all parts of the body by respiratory tube called tracheae which is further branched into tracheoles.

Ans 3:

Class : Class 9
ikrit is not given

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
C

Ans 2:

Class : Class 7
The answer will be B cause oxygen is needed for burning

Ans 3:

Class : Class 7
i think its obviously b oxygen

Ans 4:

Class : Class 4
shouldn't it be all of these cause it just anyways ran out of air

Ans 5:

Class : Class 4
wwwwwwwwwhhhhhhhhhhhhhhhyyyyyyyyyyyyyyyyywhy shivaay?

Ans 6:

Class : Class 8
A

Ans 7:

Class : Class 8
I think answer should be A, B and C - all of these.

Ans 8:

Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
ANS = B

Ans 2:

Class : Class 5

Ans 3:

Class : Class 9
Please tell the answer

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is B because Moon rotates on its own axis, revolves around a heavenly body and it has gravity.

Ans 2:

Class : Class 4
Moon doesn't rotate around its axis. That is why we can never see the other side of the Moon.SOF answer is D.

Ans 3:

Class : Class 5
picture quality is very bad

Ans 4:

Class : Class 8

Ans 5:

Class : Class 3
its B

Ans 6:

Class : Class 8
Moon doesn't rotate around its axis. That is why we can never see the other side of the Moon.SOF answer is D.

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
manasvi is right

Ans 2:

Class : Class 6
You're right Elena!

Ans 3:

Class : Class 6
D is the correct answer

Ans 4:

Class : Class 7
Can anyone tell me why D is the answer

Ans 5:

Class : Class 8

Ans 6:

Class : Class 7
Right you are,sire!

Ans 7:

Class : Class 8
Manasvi is wrong because there IS a role of transpiration ,if not then why did he wrapped the leaves in transparent polythene bags?

Ans 8:

Class : Class 5
elena is right

Ans 9:

Class : Class 7

Ans 10:

Class : Class 7

Ans 11:

Class : Class 6
b

Ans 12:

Class : Class 8
The answer is one and only D

Ans 13:

Class : Class 5
ANS IS B BECAUSE THERE IS NO ROLE OF TRANSIPIRATION IN THE GIVEN QUESTION

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
c

Ans 2:

Class : Class 7
Complete digestion of food is held in the small intestine....

Ans 3:

Class : Class 5

Ans 4:

Class : Class 6
Complete digestion of food takes place in small intestine. Also absorption of the digested food into the blood takes place in small intestine.

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