National Science Olympiad Forum By SOF Olympiad Trainer - Page 651

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7
The answer is c

Ans 4:

Class : Class 4
c

Ans 5:

Class : Class 9
Can anyone explain what 'inorganic elements' are?

Ans 6:

Class : Class 7

Ans 7:

Class : Class 9

Ans 8:

Class : Class 7
c

Ans 9:

Class : Class 7
ty

Ans 10:

Class : Class 6
Answer is C because Y is minerals.Minerals are inorganic.Excess consumption of minerals does not cause obesity.So they have told to mark incorrect answer.Therefore C is correct

Ans 11:

Class : Class 8

Ans 12:

Class : Class 7

Ans 13:

Class : Class 10

Ans 14:

Class : Class 9
C is correct

Ans 15:

Class : Class 7
c

Ans 16:

Class : Class 9
c

Ans 17:

Class : Class 6
c

Ans 18:

Class : Class 10
The answer should be (d),not (c).

Ans 19:

Class : Class 9

Ans 20:

Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1
Here, the answer is B. Since in a magnetic needle the arrow head is the North Pole, it will point towards the South Pole of the left hand side magnet and the other end of the magnetic needle (i.e; South Pole) will point towards the North Pole of the right hand side magnet.This is because like poles repel and unlike poles attract each other. Hence,the polarity of the end P of the right hand side magnet is North.

Ans 2: (Master Answer)

Class : Class 1
Here, the answer is B. Since in a magnetic needle the arrow head is the North Pole, it will point towards the South Pole of the left hand side magnet and the other end of the magnetic needle (i.e; South Pole) will point towards the North Pole of the right hand side magnet.This is because like poles repel and unlike poles attract each other. Hence,the polarity of the end P of the right hand side magnet is North.

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
Kindly mention your query

Ans 2:

Class : Class 7
The answer is C!!!

Ans 3:

Class : Class 7
THE ANS IS B

Ans 4:

Class : Class 7
The answer is C!!!

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 5
best

Ans 3:

Class : Class 9

Ans 4:

Class : Class 7
Tricky , hard and somewhat funny .

Ans 5:

Class : Class 8

Ans 6:

Class : Class 7
B is the answer to this question

Ans 7:

Class : Class 5
The answer is D A-It is false B- Typhoid and cholera are caused by polluted water, but diabetes isnt. C- It is true that organic and inorganic pollutants cause dissolved oxygen level to decrease D- Agricultural runoffs can contaminate both groundwater and surface water

Ans 8:

Class : Class 8

Ans 9:

Class : Class 8
The question says choose the 'Incorrect' option

Ans 10:

Class : Class 7
B

Ans 11:

Class : Class 8

Ans 12:

Class : Class 5

Ans 13:

Class : Class 4
B

Ans 14:

Class : Class 6
it is saying select the correct option for me

Ans 15:

Class : Class 4
it should be D

Ans 16:

Class : Class 9
How is it B, we are just learning in school abt germs and diseases and it doesn’t say anything abt diabetes caused by polluted, this is answer is wrong

Ans 17:

Class : Class 6
I KNEW ABOUT TYPHOID AND CHOLERA BUT I didn't Knew about diabetes

Ans 18:

Class : Class 5
B

Ans 19:

Class : Class 6
b

Ans 20:

Class : Class 6
the answer is B

Ans 21:

Class : Class 9
B

Ans 22:

Class : Class 8

Ans 23:

Class : Class 9

Ans 24:

Class : Class 9
It is B as the question is "Select the INCORRECT option"Diabetes is not cased by water pollution so the answer is B

Ans 25:

Class : Class 5
how is diabetes caused through dirty or polluted water?

Ans 26:

Class : Class 2
confussing

Ans 27:

Class : Class 4
not B for sure as diabetes is not caused due to water pollution

Ans 28:

Class : Class 7
B is the answer to this question

Ans 29:

Class : Class 8
ANSWER IS B

Ans 30:

Class : Class 6

Ans 31:

Class : Class 5
ans b

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
question is about sealed glass box,so there is no supply of oxygen,hence answer is 'a' only.

Ans 2:

Class : Class 1
The correct answer is A.

Ans 3:

Class : Class 9
SAIKARAN and kailash patra, you are right . SOF , check your book (if you have any left) .

Ans 4:

Class : Class 3
awnser will be A because air is mch important then food and water.

Ans 5:

Class : Class 3
But in the book its a

Ans 6:

Class : Class 7
Admin ka bacha it is a

Ans 7:

Class : Class 5
no lack of food and air we die

Ans 8:

Class : Class 9
answer should be A.

Ans 9: (Master Answer)

Class : Class 1
Here, the answer is B. Air, water and food are necessary for the survival of any living organism. So, in the absence of any one of these components an organism cannot survive. Hence, the grasshopper died due to the lack of air and food, although water was provided.

Ans 10:

Class : Class 6
In the book it is given a as answer, then why b in trainer why why why?

Ans 11:

Class : Class 4
If it is food then grasshopper will die after 2,3 days but it is writen after some times so it is a

Ans 12:

Class : Class 5

Ans 13:

Class : Class 5

Ans 14:

Class : Class 8
Air , water and food are essential for living things to survive on Earth. Therefore, in the absence of anyone of these an organism will die. Hence, the the grasshopper will die in the absence of air and food although water was provided in the sealed glass tank. Hence, option(b) is the correct answer.🦗

Ans 15:

Class : Class 4
Without air(oxygen) the grasshopper will die even food or water is given,so answer is A.

Ans 16:

Class : Class 1
many questions are wrong sof some children will think that is only correct and get less marks due to your fault .

Ans 17:

Class : Class 1
there are 3 things needed in life air water and food without air we die in minutes without water we die in hours without food we die in days in the picture it is given as water is given to grasshopper and in question it is given as the grasshopper is in sealed and died after some time only so no food and air is given but as i told after some time grasshopper will die due to lack of air only ans sof you can check your mtg workbook also .

Ans 18:

Class : Class 4
a

Ans 19:

Class : Class 3
rrrrrrrrrrrrriight for meee

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
The correct option is B

Ans 2:

Class : Class 8
The correct option is B

Ans 3:

Class : Class 8
A

Ans 4:

Class : Class 8
The correct option is B

Ans 5:

Class : Class 8

Ans 6:

Class : Class 8
The right one is option 'A'-30 mins

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Due to deficiency of Calcium.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Answer should be C as excess food is wastage.

Ans 2:

Class : Class 10
No, the answer for this is C and D .reason for answer D is excess of food leads to loss of nutrients especially Vitamin C. answer C because it is necessary to preserve pulses, grains otherwise they will rot.

Ans 3:

Class : Class 8
No, i think it's c

Ans 4:

Class : Class 9
the answer is C

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
sorry for my wrong answer

Ans 3:

Class : Class 7
dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Ans 4:

Class : Class 7
b can also be the answer

Ans 5:

Class : Class 5
Correct answer is D

Ans 6:

Class : Class 7

Ans 7:

Class : Class 8

Ans 8:

Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
xccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 2:

Class : Class 8

Ans 3:

Class : Class 7
monibuvxrzghjbhjfcdgbnmbhcthjhvvuuuvuuvuvvvuvvuvvuuvvuvuvvjo;kkkk

Ans 4:

Class : Class 6
It's all of these not none of these.

Ans 5:

Class : Class 8
@Sudarshan its NOT INVOLVED

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