National Science Olympiad Forum By SOF Olympiad Trainer - Page 699

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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 8

Ans 2:

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 3:

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

Ans 4:

Class : Class 9
even I went with B

Ans 5:

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

Ans 6:

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 7:

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 8:

Class : Class 9
The correct option is (C) or (B)?

Ans 9:

Class : Class 9
it has hair like structure

Ans 10:

Class : Class 8
The Xanthium IS dispersed by animals

Ans 11:

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

Ans 12:

Class : Class 5

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 10
D

Ans 15:

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

Ans 16:

Class : Class 9
Can't understand

Ans 17:

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

Ans 18:

Class : Class 6
the damn picture needs to be clear

Ans 19:

Class : Class 4
how is this possible

Ans 20:

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 21:

Class : Class 9
Its B

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 10
Answer is A April 3, 1984

Ans 2:

Class : Class 10

Ans 3:

Class : Class 5

Ans 4:

Class : Class 7
A is the answer to this question

Ans 5:

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

Ans 6:

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

Ans 7:

Class : Class 5
I HAD CONFUSION WITH A AND C

Ans 8:

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 9:

Class : Class 9
(A) is the correct answer

Ans 10:

Class : Class 6
ans is a April 3 1984 not ans c

Ans 11:

Class : Class 10

Ans 12:

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

Ans 13:

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

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
(A) Nomads

Ans 2:

Class : Class 7
(D) IS THE ANSWER

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
Option a is correct.

Ans 2:

Class : Class 7
the answer is d

Ans 3:

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 9
B is the correct answer.

Ans 2:

Class : Class 6
answer should be b right

Ans 3:

Class : Class 5
b answer, wrong question

Ans 4:

Class : Class 8
A is only correct

Ans 5:

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 6:

Class : Class 6
The correct ans is B

Ans 7:

Class : Class 5
B is correct

Ans 8:

Class : Class 5
if you have problem please report it

Ans 9:

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

Ans 10:

Class : Class 5
where is the solution

Ans 11:

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 12:

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

Ans 13:

Class : Class 8
d

Ans 14:

Class : Class 6
Answer D is correct

Ans 15:

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 16:

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

Ans 17:

Class : Class 9

Ans 18:

Class : Class 10
B

Ans 19:

Class : Class 4

Ans 20:

Class : Class 6
answer should be B

Ans 21:

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

Ans 22:

Class : Class 3
clearly answer B is correct

Ans 23:

Class : Class 6

Ans 24:

Class : Class 4
c is the correct answer

Ans 25:

Class : Class 6
answer should be b

Ans 26:

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 27:

Class : Class 7
A is correct

Ans 28: (Master Answer)

Class : Class 1

Ans 29:

Class : Class 6
The correct answer is D

Ans 30:

Class : Class 5
Answer is b

Ans 31:

Class : Class 7
SHOULD BE B

Ans 32:

Class : Class 6
the ans is *BBBBBBBBBBBBBBB*

Ans 33:

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 34:

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

Ans 35:

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

Ans 36:

Class : Class 5
B is the correct answer

Ans 37:

Class : Class 5
the answer is option D

Ans 38:

Class : Class 4

Ans 39:

Class : Class 5
it is 'b'

Ans 40:

Class : Class 5
I think my answer is right

Ans 41:

Class : Class 5
Dd

Ans 42:

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 43:

Class : Class 7
b

Ans 44:

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

Ans 45:

Class : Class 4

Ans 46:

Class : Class 5
it is written select the incorrect statement

Ans 47:

Class : Class 6
the answer is B

Ans 48:

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 49:

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

Ans 50:

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

Ans 51:

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

Ans 52:

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

Ans 53:

Class : Class 5
C IS CORRECT

Ans 54:

Class : Class 7
b

Ans 55:

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

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Subject :NSO    Class : Class 9

Ans 1:

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

Ans 2: