# User Forum

Subject :NSO    Class : Class 6

## Ans 1:

Class : Class 6
it is simple that while measuring, at first you eye must be vertically above 0

## Ans 2:

Class : Class 6
the answer will be both a and b

Class : Class 6
cccccccccccc

Class : Class 10

Class : Class 7
i think its C

Class : Class 6

## Ans 7:

Class : Class 8
I think it should be C because otherwise the zero end can shift slightly (in our viewpoint) and measurement will be wrong. So both statements a and b are correct and the answer is C.

Class : Class 10

## Ans 9:

Class : Class 7
I agree with Aritroray the answer should be C

## Ans 10:

Class : Class 7
no because what will u do of zero u have to

Class : Class 7

## Ans 12:

Class : Class 7
No as it causes a parallax error. It should be option A. If you don't believe me then try it yourself with a scale and measuring a line segment from different eye positions. You will see that, the measurement varies slightly every time. That's why option A is correct.

## Ans 13:

Class : Class 3
No guys. Human eye can't focus simultaneously on two points. To avoid parallax error , eye should be on the point of measurement to be taken.Hence given answer is correct in my view. You may comment.

Subject :NSO    Class : Class 6

Class : Class 8

Class : Class 1
A

Class : Class 9

Class : Class 10
A

Class : Class 1

Class : Class 7

## Ans 7:

Class : Class 7
A as image is as far behind the mirror as Object is in front of it. In this case Sachin is 3 m in front of the mirror and the object seems to be seven meters ahead. As Sachin is 3 m in front of the mirror that means object is (7-3) = 4 m behind the mirror. As image is as far behind the mirror as Object is in front of it, It means chart is 4 meters in front of the mirror. ( 4 - 3 ) = 1 m behind Sachin as Sachin is also in front of the mirror. Hope that answers your question !

Class : Class 8
a

Class : Class 3
A

Class : Class 9

Class : Class 6

## Ans 12:

Class : Class 6
Sachin is being tested for his eyesight by an optician.Now, letÃ¢Â€Â™s read the given information carefully, and find out the position of Sachin.Sachin sits 3 m in front of a plane mirror, and looks at the image of the chart of letters, which seems to be 7 m in front of him.This means the distance between the mirror and the image of the chart is (7 m Ã¢Â€Â“ 3 m = 4 m). If the image of the chart is 4 m behind the mirror, then the actual chart is placed 4 m in front of mirror.Now the chart is placed 4 m in front of the mirror, and Sachin is sitting 3 m in front of the mirror. That means the chart is placed (4 m Ã¢Â€Â“ 3 m = 1 m) behind Sachin. Hence, the right answer is Option A.

## Ans 13:

Class : Class 6
Sachin is being tested for his eyesight by an optician.Now, letÃ¢Â€Â™s read the given information carefully, and find out the position of Sachin.Sachin sits 3 m in front of a plane mirror, and looks at the image of the chart of letters, which seems to be 7 m in front of him.This means the distance between the mirror and the image of the chart is (7 m Ã¢Â€Â“ 3 m = 4 m). If the image of the chart is 4 m behind the mirror, then the actual chart is placed 4 m in front of mirror.Now the chart is placed 4 m in front of the mirror, and Sachin is sitting 3 m in front of the mirror. That means the chart is placed (4 m Ã¢Â€Â“ 3 m = 1 m) behind Sachin. Hence, the right answer is Option A.

Subject :NSO    Class : Class 5

## Ans 1:

Class : Class 5
Ans is C potato is stem and sugar cane also stem

Class : Class 9

Class : Class 5

## Ans 4:

Class : Class 5
yes ,you are rightans is c

Subject :NSO    Class : Class 3

## Ans 1:

Class : Class 6
B is not correct as it is gravity that causes objects to fall on the ground

Class : Class 8

Class : Class 4
How is it C

## Ans 4:

Class : Class 5
Yes how it can be C ?

## Ans 5:

Class : Class 6
frictional force is answer prevents from slipping

Class : Class 7

## Ans 7:

Class : Class 6
B is not correct as it is gravity that causes objects to fall on the ground

## Ans 8:

Class : Class 4

Subject :NSO    Class : Class 4

## Ans 1:

Class : Class 4
Hey, some spider species have six legs, usually out of India. And the whole explanation is wrong.

Class : Class 5

## Ans 3:

Class : Class 4
But no spider species have 6 legs

## Ans 4:

Class : Class 7
A. P could be cold-blooded animal whereas R could be warm-blooded animal. ----- Frog has backbone, lays eggs and is a cold-blooded animal. So, P can be a Frog. Humans have backbone and hair, and they are warm-blooded. So, R can be a Human Being. So, this statement is Correct.B. Q could be six-legged animal whereas R could be four-legged animal. ----- Spiders have six legs and they lay eggs. So, Q can be a Spider. Horses are four-legged animals. They have backbone and hair. So, R can be a Horse. So, this statement is Correct.C. R could breathe through lungs whereas S could breathe through spiracles. ----- Dogs breathe through lungs, they have backbone and hair. So, R could be a Dog. Cockroaches breathe through spiracles. They have backbone and lay eggs, but they have no hair. So, S can be a Cockroach. So, this statement is Incorrect.D. P could have a pair of wings whereas Q could have two pairs of wings. ----- Birds have a pair of wings. They have backbone and they lay eggs. So, P could be a Bird. Most insects have two pair of wings, and they lay eggs. So, Q could be an Insect. So, this statement is Correct.Hence, the right answer is Option C.

Class : Class 5

## Ans 6:

Class : Class 4
Thank you for the explanation

## Ans 7:

Class : Class 6
Please explain more nicely and Keanna thank you for explaining

## Ans 8:

Class : Class 4
The option D. is wrong. It mentions 3 pairs of wings whereas it should be 2 pairs of wings.

## Ans 9:

Class : Class 4
But no spider species have 6 legs

Class : Class 5

## Ans 11:

Class : Class 4
Most off your questions are wrong

## Ans 12:

Class : Class 5
confusing question

## Ans 13:

Class : Class 4
Oh my! thanks for solving my problem .

Subject :NSO    Class : Class 4

## Ans 1:

Class : Class 7
OMG!How confusing!How did the others do it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Class : Class 2

Class : Class 4

Class : Class 5

## Ans 5:

Class : Class 5
I did it with a guess and got it right somehow!

Class : Class 4

## Ans 7:

Class : Class 4
Letâ€™s study the given food-web carefully:The food-web is starting from P. So, P are plants (Producers). Q, T and U are eating these plants, so they are Herbivores (Primary Consumers). R are eating Q, and V are eating U, so they are Carnivores (Secondary Consumers). S are eating T as well as R

Subject :NSO    Class : Class 6

Subject :NSO    Class : Class 3

Class : Class 4
d

## Ans 2:

Class : Class 3
Answer can be A also as Q can be duck and P can be penguin and both of them have webbed feet and penguins live in places like Antartica.

Class : Class 3
D

## Ans 4:

Class : Class 3
is it option C ?

Subject :NSO    Class : Class 8

## Ans 1:

Class : Class 9
B

Subject :NSO    Class : Class 5

Class : Class 6

## Ans 2:

Class : Class 6
Why will it be D? It should be C, because the Vaseline blocks the stomata of the leaves, and thus blocks the surface for transpiration, so water droplets will not appear on those leaves, but the uncovered leaves were not stained or covered with anything, so the transpiration process in those leaves should stay normal.

Class : Class 5

## Ans 4:

Class : Class 7
Why D?It should be option C .

Class : Class 8

Class : Class 3

Class : Class 5

## Ans 8:

Class : Class 7
C is the answer to this question because the leaves are uncovered

## Ans 9:

Class : Class 6
Ans is C because like humans, plants also sweat. This is called transpiration.

Class : Class 5