National Science Olympiad Forum By SOF Olympiad Trainer - Page 496

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Subject :NSO    Class : Class 1

Ans 1:

Class : Class 3

Ans 2:

Class : Class 1
I think it should be B because we can see that rabbit P just got food and rabbit Q got food and water. Without food we and survive 30-40 days but without water only 21 days . If we say D we don't know what kind of material is it. It can be plastic or glass.

Ans 3:

Class : Class 1
i think the answer is wrong suggested by the system. if even after paying money we get wrong answers, then the credibility of this system is a big ????????????.

Ans 4:

Class : Class 3
Actually many answers are wrong.

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Subject :NSO    Class : Class 1

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 3
Actually Mount Fuji is an Dormant volcano. In case of such question forget what you have read just analyse the question which says it erupted few years ago means it's a active volcano.

Ans 2:

Class : Class 10
You all are wrong except oshik kundu.

Ans 3:

Class : Class 9

Ans 4:

Class : Class 10
Tasneem you are also wrong.

Ans 5:

Class : Class 4
yes, it should be dormant

Ans 6:

Class : Class 10
Ayush Banerjee you are wrong .

Ans 7:

Class : Class 8
It should be a Dormant Volcano as it has not erupted since 10,000 years

Ans 8:

Class : Class 10
Actually mount Fuji is not an' Active Volcano' . It has not erupted in the past 10,000 years. Hence , It is a 'Dormant Volcano.'

Ans 9:

Class : Class 3
Actually Mount Fuji is an Dormant volcano. In case of such question forget what you have read just analyse the question which says it erupted few years ago means it's a active volcano.

Ans 10:

Class : Class 3
Actually Mount Fuji is an Dormant volcano. In case of such question forget what you have read just analyse the question which says it erupted few years ago means it's a active volcano.

Ans 11:

Class : Class 8
Mount Fuji Volcano erupted few years back. It threw out fine, glass-rich ash into the atmosphere. It thereby disrupted air traffic and caused inconvenience to air travel. It might also erupt again in future. Mount Fuji is an example of Active Volcanoes. Active Volcanoes are those that have erupted in the past 10,000 years. Dormant Volcanoes are those volcanoes that haven't erupted in the past 10,000 years, but are expected to erupt again. Mount Kilimanjaro in Tanzania is a dormant volcano. Extinct Volcanoes are those that have not had an eruption for at least 10,000 years and are not expected to erupt again in any near future. Mount Kulal in Kenya is an extinct volcano. There is no such thing as Vulnerable Volcanoes. Hence, the right answer is Option D.

Ans 12:

Class : Class 6
b

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9

Ans 2:

Class : Class 7
Hippo, whale and cow have skin covering.

Ans 3:

Class : Class 8
Penguin and ostrich are birds(aves) while a bat is a mammal. Thus, a bat has hair on its skin. An ostrich has feathers on its skin. A penguin has very little or no feather on it so as to make itself streamlined to be able to swim easily.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 6

Ans 2:

Class : Class 3
answer is d !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6
I think ans B as Hyena is a scavenger and others are predators...

Ans 5:

Class : Class 6

Ans 6:

Class : Class 4
I think right answer will be B as hyena is a scavenger but others are carnivores

Ans 7:

Class : Class 6

Ans 8:

Class : Class 6
The answer is option (d) becausei) cows , buffaloes and goats have their food in the same manner called chewing the cud.ii) Lions , wolves and hyena have their food in the same manner called tearing the flesh.iii) Butterflies, mosquitoes and leeches have their food in the same manner called sucking the food.Hence the correct answer is option (d)

Ans 9:

Class : Class 5
I think it is C becuse mosquitoes andleeches suck blood but a butterfly such nectar. Or it can be B.

Ans 10:

Class : Class 1

Ans 11:

Class : Class 7
Answer is B because hyena is a scavenger, others are carnivores

Ans 12:

Class : Class 9
D

Ans 13:

Class : Class 3
I think B is the correct answer because mosquitos and leeches suck blood that they get from humans and animals but butterflies eat nectar that they get from plants

Ans 14:

Class : Class 6
Correct answer is B

Ans 15:

Class : Class 3
The correct ans is D

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
ojoo;j 9pu i jp[yuj7u\ p i[u0y7h'p/ 00ujy7mb[o

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
wooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooollllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

Ans 2:

Class : Class 5
c is correct as the question is saying of pure fabric so the ans. should be c google --(Silk is formed of animal protein secretion of silkworms. Hence , when burnt it smells like hair , which is also composed of animal protein.

Ans 3:

Class : Class 8
Silk smells like charred meat

Ans 4:

Class : Class 8
It should be wool. D is the correct answer.

Ans 5:

Class : Class 6
It should be wool I even looked it up on the internet. It should be wool!

Ans 6:

Class : Class 8
Yes the answer should be wool

Ans 7:

Class : Class 6
woolwooolwoooooooooooooool

Ans 8:

Class : Class 6
wooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooool

Ans 9:

Class : Class 6
wooooooooooooooooooooooooooooooooooooooooooooooooooooool

Ans 10:

Class : Class 8
SOF Master Answer Please explain . The answer should be WOOL

Ans 11:

Class : Class 7
Exactly, silk smells like charred meat...and wool smells like burning hair.

Ans 12:

Class : Class 5

Ans 13:

Class : Class 3
It should be wool. The smell of silk is charred meat.

Ans 14:

Class : Class 7

Ans 15:

Class : Class 6
wool.wool.wool.wool.wool.

Ans 16:

Class : Class 8
Wool

Ans 17:

Class : Class 8
Smell of burning silk is charred meat, where as smell of burning wool is as burned hair. So answer should be (D).

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
11

Ans 2:

Class : Class 3

Ans 3:

Class : Class 7
11 is correct acd acdi acde acdef acdefg acdeg hcdef hcde hcdeg hcd hbg

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6
I think there are 9 food chains at all. Please check the diagram of the food web.

Ans 6:

Class : Class 6
no 9

Ans 7:

Class : Class 3
Study the given food web and select the correct option for the following questions. How many food chains are there in the food web? A 9 B 11 C 13 D 16ans is c

Ans 8:

Class : Class 5
ans 9

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Subject :NSO    Class : Class 6

Which of the following statements is incorrect about the asteroids?

AThey are planet like objects, but smaller and often irregularly shaped.
BMajority of asteroids orbit in the asteroid belt between the orbits of Mars and Jupiter.
CAsteroids mainly composed of mineral and rock.
DVesta is the largest and most massive asteroid discovered.


from https://en.wikipedia.org/wiki/4_Vesta: Vesta (minor-planet designation: 4 Vesta) is one of the largest objects in the asteroid belt, with a mean diameter of 525 kilometres (326 mi).I think some error with question

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