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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
B

Ans 2: (Master Answer)

Class : Class 1

B

Q is an animal that lays eggs and has 4-stages in its life-cycle. Q could be butterfly or mosquito. They lay eggs, and their life-cycle has 4-stages – egg, larva, pupa and adult. The pupa stage is the non-feeding stage.


Ans 3:

Class : Class 4
Admin is correct.I know that!

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
B

Ans 2: (Master Answer)

Class : Class 1

B

Biodegradable household wastes increase soil fertility.


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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
B

Ans 3: (Master Answer)

Class : Class 1

B

Surface Y is shiny, so it may act like a mirror.


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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
the answer is A because all the three glasses that is A,B,C is at 75 degrees threfore option A is the right answer

Ans 2:

Class : Class 5

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1

B

Length of the day depends on the speed of rotation of a planet on its axis. The more is the speed the shorter is the length of the day.


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Subject :NSO    Class : Class 4

A factory was set up in an area which used to discharge its untreated waste down the pipe into nearby water body. After few years the factory was shut down due to some legal action. The given graph shows the changes in the populations of two organisms X and Y over time, before the setting of factory and after it was shut down. Identify X and Y and select the correct option.


A X could be bacteria and Y could be fish.
B X could be prawn and Y and could be a submerged aquatic plant.
C X could be a water bird and Y could be algae.
D X could be algae and Y could be bacteria.


Ans 1:

Class : Class 4
Please explain

Ans 2: (Master Answer)

Class : Class 1

A


Ans 3:

Class : Class 3
A

Ans 4:

Class : Class 3
A

Ans 5:

Class : Class 5
The correct answer is A

Ans 6:

Class : Class 4

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Subject :NSO    Class : Class 6

Read the given passage and fill in the blanks by choosing an appropriate option.
Iron nails when new are grey and bright. When exposed to (i), they get covered with a (ii) coating. This process is called (iii) and it is a (iv) change.

(i) (ii) (iii) (iv)
A Moist air Grey Corrosion Chemical, reversible
B Air and water Reddish brown Rusting Chemical, irreversible
C Oxygen in air Green Rancidity Physical, irreversible
D Nitrogen in air Reddish brown Galvani-sation Chemical, irreversible


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Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1

D

Wooden ruler is opaque, and it has a definite shape. So, it can be W.

Dough is opaque, and it doesn’t have a definite shape. So, it can be X.

Tracing paper is translucent and has a definite shape. So, it can be Y.

Haze  has no definite shape, and it is translucent. So, it can be Z. Hence, the correct option is D.


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