National Science Olympiad Forum By SOF Olympiad Trainer - Page 591

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
Please mention your query

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
42

Ans 2:

Class : Class 10
It's 42 guys

Ans 3:

Class : Class 7
The answer is 42!!!

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Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Class : Class 1
Here, the correct answer is A. In (A), the incident rays are diverged after refraction, so the lens is concave and in (B), the incident rays are converged after refraction, so the lens is convex.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9
WHAT IS THE CLASS THIS IS LIKE MATHS

Ans 3: (Master Answer)

Class : Class 1
Here, the answer is C. Displacement is the shortest distance covered by a body. In a circular path, the distance between the initial point (Here=P) and the final point (Here=Q) will give you the displacement. Here, Shortest distance between P and Q is PO + OQ = a + a = 2a Hence, the displacement of the cyclist would be 2a.

Ans 4:

Class : Class 8
thanks admin for the explanation

Ans 5:

Class : Class 10
i did not understand the question

Ans 6:

Class : Class 7
the ans will be c

Ans 7:

Class : Class 7
in short words this was easy

Ans 8:

Class : Class 9
WHAT IS THE CLASS THIS IS LIKE MATHS

Ans 9:

Class : Class 6
Why are there maths questions in science paper?????

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Subject :NSO    Class : Class 6

Ans 1:

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 2:

Class : Class 8

Ans 3:

Class : Class 7
ty

Ans 4:

Class : Class 7

Ans 5:

Class : Class 4
c

Ans 6:

Class : Class 9
C is correct

Ans 7:

Class : Class 9
c

Ans 8:

Class : Class 6

Ans 9:

Class : Class 9

Ans 10:

Class : Class 10

Ans 11:

Class : Class 10

Ans 12:

Class : Class 7
c

Ans 13:

Class : Class 8

Ans 14:

Class : Class 7

Ans 15:

Class : Class 7
c

Ans 16:

Class : Class 9

Ans 17:

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

Ans 18:

Class : Class 9
The answer should be (d),not (c).

Ans 19:

Class : Class 7
The answer is c

Ans 20:

Class : Class 6
c

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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!!!

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
best

Ans 2:

Class : Class 8

Ans 3:

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

Ans 4:

Class : Class 8

Ans 5:

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

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 9

Ans 9:

Class : Class 9
B

Ans 10:

Class : Class 5

Ans 11:

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 12:

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

Ans 13:

Class : Class 2
confussing

Ans 14:

Class : Class 5
ans b

Ans 15:

Class : Class 7
Tricky , hard and somewhat funny .

Ans 16:

Class : Class 5

Ans 17:

Class : Class 8
ANSWER IS B

Ans 18:

Class : Class 4
B

Ans 19:

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 20:

Class : Class 7
B is the answer to this question

Ans 21:

Class : Class 8

Ans 22:

Class : Class 8

Ans 23:

Class : Class 5
B

Ans 24:

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

Ans 25:

Class : Class 4
it should be D

Ans 26:

Class : Class 7
B

Ans 27:

Class : Class 6
the answer is B

Ans 28:

Class : Class 5
it is saying select the correct option for me

Ans 29:

Class : Class 6
b

Ans 30:

Class : Class 9

Ans 31:

Class : Class 9

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

Ans 3:

Class : Class 5

Ans 4:

Class : Class 3
But in the book its a

Ans 5:

Class : Class 4
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 6:

Class : Class 9
answer should be A.

Ans 7:

Class : Class 5

Ans 8:

Class : Class 4
many questions are wrong sof some children will think that is only correct and get less marks due to your fault .

Ans 9:

Class : Class 4
The correct answer is A.

Ans 10: (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 11:

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

Ans 12:

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

Ans 13:

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 14:

Class : Class 4
a

Ans 15:

Class : Class 7
Admin ka bacha it is a

Ans 16:

Class : Class 3
rrrrrrrrrrrrriight for meee

Ans 17:

Class : Class 7
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 18:

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

Ans 19:

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

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
A

Ans 2:

Class : Class 8
The correct option is B

Ans 3:

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

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8
The correct option is B

Ans 6:

Class : Class 8
The correct option is B

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