National Science Olympiad Forum By SOF Olympiad Trainer - Page 651

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
c

Ans 3:

Class : Class 9
C is correct

Ans 4:

Class : Class 10

Ans 5:

Class : Class 9
c

Ans 6:

Class : Class 4
c

Ans 7:

Class : Class 7

Ans 8:

Class : Class 7
The answer is c

Ans 9:

Class : Class 7
c

Ans 10:

Class : Class 7

Ans 11:

Class : Class 8

Ans 12:

Class : Class 9

Ans 13:

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 14:

Class : Class 8

Ans 15:

Class : Class 7
ty

Ans 16:

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

Ans 17:

Class : Class 6
c

Ans 18:

Class : Class 10

Ans 19:

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

Ans 20:

Class : Class 9

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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:

Class : Class 7
The answer is C!!!

Ans 2: (Master Answer)

Class : Class 1
Kindly mention your query

Ans 3:

Class : Class 7
The answer is C!!!

Ans 4:

Class : Class 7
THE ANS IS B

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 6
the answer is B

Ans 3:

Class : Class 9
B

Ans 4:

Class : Class 8

Ans 5:

Class : Class 4
B

Ans 6:

Class : Class 8

Ans 7:

Class : Class 9

Ans 8:

Class : Class 6
b

Ans 9:

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

Ans 10:

Class : Class 5
best

Ans 11:

Class : Class 7
B is the answer to this question

Ans 12:

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

Ans 13:

Class : Class 7
B

Ans 14:

Class : Class 7
B is the answer to this question

Ans 15:

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 16:

Class : Class 8

Ans 17:

Class : Class 4
it should be D

Ans 18:

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 19:

Class : Class 7
Tricky , hard and somewhat funny .

Ans 20:

Class : Class 5
B

Ans 21:

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

Ans 22:

Class : Class 6

Ans 23:

Class : Class 8

Ans 24:

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 25:

Class : Class 5

Ans 26:

Class : Class 8
ANSWER IS B

Ans 27:

Class : Class 5
ans b

Ans 28:

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

Ans 29:

Class : Class 9

Ans 30:

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

Ans 31:

Class : Class 2
confussing

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Subject :NSO    Class : Class 3

Ans 1:

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

Ans 2:

Class : Class 9
answer should be A.

Ans 3:

Class : Class 5

Ans 4:

Class : Class 7
Admin ka bacha it is a

Ans 5:

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

Ans 6:

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

Ans 7:

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 8:

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 9:

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

Ans 10:

Class : Class 4
a

Ans 11:

Class : Class 5

Ans 12: (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 13:

Class : Class 3
rrrrrrrrrrrrriight for meee

Ans 14:

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

Ans 15:

Class : Class 3
But in the book its a

Ans 16:

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 17:

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

Ans 18:

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 19:

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
The correct option is B

Ans 3:

Class : Class 8
A

Ans 4:

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

Ans 5:

Class : Class 8
The correct option is B

Ans 6:

Class : Class 8
The correct option is B

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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 8
No, i think it's c

Ans 2:

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

Ans 3:

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 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 5
Correct answer is D

Ans 3:

Class : Class 7
dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Ans 4:

Class : Class 6

Ans 5:

Class : Class 7
b can also be the answer

Ans 6:

Class : Class 7
sorry for my wrong answer

Ans 7:

Class : Class 7

Ans 8:

Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6
xccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 3:

Class : Class 8
@Sudarshan its NOT INVOLVED

Ans 4:

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

Ans 5:

Class : Class 7
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