National Science Olympiad Forum By SOF Olympiad Trainer - Page 778

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
Options B and D are correct

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
it has hair like structure

Ans 2:

Class : Class 6
the damn picture needs to be clear

Ans 3:

Class : Class 10
D

Ans 4:

Class : Class 9
Its B

Ans 5:

Class : Class 5
The image looks nothing like cocklebur. It has to be a bit more clear,

Ans 6:

Class : Class 9
even I went with B

Ans 7:

Class : Class 8
it is dandelion isn't it??? i think it is wind because hair and size

Ans 8:

Class : Class 10
I think that laksmi is saying correct because we cannot diffrentiate them as it is not clear that they are spines like in xanthium or feather like in dandelion

Ans 9:

Class : Class 10
You are correct ans. is B wind because it seems to be light in weight and also hairs that acts like feathers and also wind can carry only light weight seeds.

Ans 10:

Class : Class 10
The correct option is (C) or (B)?

Ans 11:

Class : Class 6
It is Xanthium which is dispersed by animals.

Ans 12:

Class : Class 5
Correct answer is A !!! As it is having hair like structure so, it is carried by wind

Ans 13:

Class : Class 6
The picture given did not look like xanthium neither dandelion ,so it looked like dandelion to me so I went with (B)Please give better images

Ans 14:

Class : Class 4
how is this possible

Ans 15:

Class : Class 9
Can't understand

Ans 16:

Class : Class 8

Ans 17:

Class : Class 5
it is C as it is a Xanthium

Ans 18:

Class : Class 4
The picture is not clear and it cannot be said that it is a xanthium neither can it be said it is a dandelion. I went with B. Please show better qualities pictures sof.

Ans 19:

Class : Class 8
The Xanthium IS dispersed by animals

Ans 20:

Class : Class 5

Ans 21:

Class : Class 6
The correct answer should be B because it has a hairy structure and it can be dispersed by wind .nor its written that this is Xanthium

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
A is the answer to this question

Ans 2:

Class : Class 10

Ans 3:

Class : Class 7
IT IS IN 1984 WHEN MY MOTHER WAS BORN.

Ans 4:

Class : Class 8
the answer is 2nd april 1984 i got confused

Ans 5:

Class : Class 5

Ans 6:

Class : Class 8
Hey, mathamagician. Uh it could also be April 3 since the dates might differ by a few days due to there being many sources.

Ans 7:

Class : Class 10

Ans 8:

Class : Class 7
ans is a April 3 1984 not ans c

Ans 9:

Class : Class 5
I HAD CONFUSION WITH A AND C

Ans 10:

Class : Class 6
No, it is actually none, it was on 2nd April 1984.

Ans 11:

Class : Class 10
(A) is the correct answer

Ans 12:

Class : Class 7
IT IS JUST ON MY BIRTHDAY SO I REMEMBER IT. OPTION C IS THE ANSWER

Ans 13:

Class : Class 10
Answer is A April 3, 1984

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
(D) IS THE ANSWER

Ans 2:

Class : Class 5
(A) Nomads

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
OPTION A IS CORRECT NO CHANCE OF WRONG

Ans 2:

Class : Class 7
In option A, sunflower and paddy should be interchanged as sunflower has taproot and paddy has fibrous root system. Option D is the correct answer as wheat, maize and paddy have fibrous roots and sunflower, carrot and radish have taproot

Ans 3:

Class : Class 7
Option a is correct.

Ans 4:

Class : Class 7
the answer is d

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
b

Ans 2:

Class : Class 6
answer should be b right

Ans 3:

Class : Class 9
according to me the correct answer is B

Ans 4:

Class : Class 10
Fe facts:1) Ostriches have wings, though it is not used for flying.2) Bats do not have feathers. They have hairs like other mammals.3) Emu has wings and again not used for flying.4) A penguin has feathers.5) Almost all birds have wings and feathers.So, option D is the only one that seems right.

Ans 5:

Class : Class 8
b

Ans 6:

Class : Class 6
the answer is B

Ans 7:

Class : Class 9
A is only correct

Ans 8:

Class : Class 9
B is the correct answer.

Ans 9:

Class : Class 5
I think my answer is right

Ans 10:

Class : Class 4

Ans 11:

Class : Class 5
the answer is option D

Ans 12:

Class : Class 6
The correct ans is B

Ans 13: (Master Answer)

Class : Class 1

Ans 14:

Class : Class 4

Ans 15:

Class : Class 7
well we can say that ans d is correct because emu has both the features mentioned in the question while option b describes only one of them

Ans 16:

Class : Class 5
Dd

Ans 17:

Class : Class 3
clearly answer B is correct

Ans 18:

Class : Class 9
Mathamagician, we should not say anyone fool. Please keep in mind

Ans 19:

Class : Class 9
c is the correct answer

Ans 20:

Class : Class 5
B is the correct answer. According to me

Ans 21:

Class : Class 10
Organism X is actually emu, because it has wings AND feathers. So correct answer is D.Answer B however is wrong, as it tells emus ONLY have feathers. Answer C is wrong as organism X can be any bird, even penguins. And answer A is also wrong as bats don't have feathers and ostriches have wings too.

Ans 22:

Class : Class 7
A is correct

Ans 23:

Class : Class 7
Hey many people are thinking answer B is right .well, yeah according to me ans B is right .these SOF people really need to improve and update this app

Ans 24:

Class : Class 6

Ans 25:

Class : Class 6
you both are wrong.the correct answer is B

Ans 26:

Class : Class 3
The answer is d because they ask which is " INCORRECT", AND OPTION B IS THE CORRECT OPTION, AND BOTH A AND C ARE INCORRECT. AS THEY HAVE ASKED INCORRECTLY, THE ANSWER IS D, AS BOTH A AND C ARE WRONG.

Ans 27:

Class : Class 5
where is the solution

Ans 28:

Class : Class 6
answer should be B

Ans 29:

Class : Class 5
Answer is b

Ans 30:

Class : Class 3
I DON'T UNDERSTAND, CLARIFY MY DOUBT QUICKLY SIR OR MADAM

Ans 31:

Class : Class 5
it is 'b'

Ans 32:

Class : Class 7
SHOULD BE B

Ans 33:

Class : Class 8
d

Ans 34:

Class : Class 9

Ans 35:

Class : Class 10
B

Ans 36:

Class : Class 6
D is only correct as in option B they have given that Z can be emu but emu has both wings and feathers and it is a flightless bird

Ans 37:

Class : Class 10
Even I think the correct answer is B

Ans 38:

Class : Class 6
the ans is *BBBBBBBBBBBBBBB*

Ans 39:

Class : Class 6
you both are wrong.the correct answer is B

Ans 40:

Class : Class 5
B is correct

Ans 41:

Class : Class 4
The answer has to be b. Come on SOF.

Ans 42:

Class : Class 5
B is the correct answer

Ans 43:

Class : Class 6
According to me the answer is B.

Ans 44:

Class : Class 5
b answer, wrong question

Ans 45:

Class : Class 5
it is written select the incorrect statement

Ans 46:

Class : Class 6
Answer D is correct

Ans 47:

Class : Class 6
The correct answer is D

Ans 48:

Class : Class 6
I thought it was c), but it is d). People who think it is b), are all fools

Ans 49:

Class : Class 4

Ans 50:

Class : Class 7
the correct answer is D as in B there is no mention on what X is

Ans 51:

Class : Class 3
Bats have wings and no feathers. Ostriches and Emus have both feathers and wings, but they can’t fly mainly due to their huge size. Penguins have feathers and flippers (not wings). “A” is incorrect as bats doesn’t have feathers. “B” is incorrect as penguins doesn’t have wings. “C” is incorrect as there are birds that has both feathers and wings. “D” is the correct answer

Ans 52:

Class : Class 5
C IS CORRECT

Ans 53:

Class : Class 5
if you have problem please report it

Ans 54:

Class : Class 6
answer should be b

Ans 55:

Class : Class 5
But the correct answer according to SOF is option D

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
We fry stuff in oil because oil has much higher boiling point in comparison to water. So after heating when oil reaches temperatures greater than the boiling point of water (100 C) it instantly vaporize the water present in food into steam. ... Oil fries it and gives a crispy texture.

Ans 2:

Class : Class 9
oil has a low boiling point than water. Therefore we use oil to make the cooking process faster and easier

Ans 3:

Class : Class 9
oil has a low boiling point than water. Therefore we use oil to make the cooking process faster and easier

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 6
a is theaa is the answer.

Ans 2:

Class : Class 4
The answer is D as the pictures given have different hazards.

Ans 3:

Class : Class 8
a is the answer

Ans 4:

Class : Class 8

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