National Science Olympiad Forum By SOF Olympiad Trainer - Page 754

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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 5

Ans 2:

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

Ans 3:

Class : Class 9
even I went with B

Ans 4:

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

Ans 5:

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 6:

Class : Class 9
Its B

Ans 7:

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

Ans 8:

Class : Class 9
it has hair like structure

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 8

Ans 11:

Class : Class 9
Can't understand

Ans 12:

Class : Class 6
the damn picture needs to be clear

Ans 13:

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

Ans 14:

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

Ans 15:

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 16:

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 17:

Class : Class 8
The Xanthium IS dispersed by animals

Ans 18:

Class : Class 10
D

Ans 19:

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

Ans 20:

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

Ans 21:

Class : Class 4
how is this possible

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 6:

Class : Class 10

Ans 7:

Class : Class 5
I HAD CONFUSION WITH A AND C

Ans 8:

Class : Class 5

Ans 9:

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

Ans 10:

Class : Class 7
A is the answer to this question

Ans 11:

Class : Class 10
Answer is A April 3, 1984

Ans 12:

Class : Class 10
(A) is the correct answer

Ans 13:

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

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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 7
the answer is d

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 8
OPTION A IS CORRECT NO CHANCE OF WRONG

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Answer D is correct

Ans 2:

Class : Class 5
b answer, wrong question

Ans 3:

Class : Class 5
the answer is option D

Ans 4:

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

Ans 5:

Class : Class 10
B

Ans 6:

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

Ans 7:

Class : Class 5
I DON'T UNDERSTAND, CLARIFY MY DOUBT QUICKLY SIR OR MADAM

Ans 8:

Class : Class 5
c is the correct answer

Ans 9:

Class : Class 5
B is correct

Ans 10:

Class : Class 6

Ans 11:

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 12:

Class : Class 4

Ans 13:

Class : Class 4

Ans 14:

Class : Class 6
the ans is *BBBBBBBBBBBBBBB*

Ans 15:

Class : Class 6
The correct ans is B

Ans 16:

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

Ans 17:

Class : Class 4

Ans 18:

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 19:

Class : Class 5
B is the correct answer

Ans 20:

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

Ans 21:

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

Ans 22:

Class : Class 6
answer should be b right

Ans 23:

Class : Class 5
if you have problem please report it

Ans 24: (Master Answer)

Class : Class 1

Ans 25:

Class : Class 5
where is the solution

Ans 26:

Class : Class 9

Ans 27:

Class : Class 7
A is correct

Ans 28:

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 29:

Class : Class 5
Answer is b

Ans 30:

Class : Class 6
answer should be B

Ans 31:

Class : Class 5
it is written select the incorrect statement

Ans 32:

Class : Class 7
SHOULD BE B

Ans 33:

Class : Class 5
it is 'b'

Ans 34:

Class : Class 8
B is the correct answer. According to me

Ans 35:

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 36:

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

Ans 37:

Class : Class 5
C IS CORRECT

Ans 38:

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

Ans 39:

Class : Class 5
I think my answer is right

Ans 40:

Class : Class 9
B is the correct answer.

Ans 41:

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 42:

Class : Class 8
b

Ans 43:

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

Ans 44:

Class : Class 9
A is only correct

Ans 45:

Class : Class 6
answer should be b

Ans 46:

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 47:

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

Ans 48:

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

Ans 49:

Class : Class 6
the answer is B

Ans 50:

Class : Class 3
clearly answer B is correct

Ans 51:

Class : Class 5
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 52:

Class : Class 8
d

Ans 53:

Class : Class 5
Dd

Ans 54:

Class : Class 8
b

Ans 55:

Class : Class 6
The correct answer is 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 8
a is the answer

Ans 2:

Class : Class 6
a is theaa is the answer.

Ans 3:

Class : Class 8

Ans 4:

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

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