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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1

The correct answer is A.

Count the number of total balls = 21
Count the number of crossed balls = 6
So, the subtraction sentence will be 21 - 6.
Now make the subtraction sentences for all options:
(A) 2 tens 1 one - 6 ones = 21 - 6 
(B) 2 tens 2 ones - 6 ones = 22 - 6 
(C) 2 tens - 6 ones = 20 - 6
(D) 2 tens 3 tens - 6 ones = 23 - 6


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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

The correct answer is B.

Total Smileys = 56
Green Smileys = 8
Fraction of Green Smileys = 8/56 = 1/7


Ans 2:

Class : Class 3
It will be 8/56,every answer is wrong because its a proper fraction so 8/56=8/56

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
the answer is d as many plants don't have flowers but still reproduce. Without the leaves, the plants can't make food.

Ans 2:

Class : Class 6
but seeds can reproduce through stem , leaves , and root too , can't they ???

Ans 3:

Class : Class 4
I think it is seed only because if the other parts will no be there than how the previous plant will grow

Ans 4:

Class : Class 6
but in some plants ther is no flower then also they can reproduce in a different manner

Ans 5:

Class : Class 5
I think answer is (C) as flowers changes into fruit and fruit changes into seed.

Ans 6:

Class : Class 5
Flower attract the insects for pollination,so the answer is C

Ans 7:

Class : Class 5
Think the correct ans'rs C Cause a flower changes into a fruit in the fruit then bears seads which give rise to new plants on being down in soil. That's what I think don't know if it is right!!!

Ans 8: (Master Answer)

Class : Class 1

The correct answer is C

Flower changes into fruits and fruit bears seeds. Seeds give rise to new plants when sown into soil.


Ans 9:

Class : Class 5
Stem is also correct for some plants like mint ,

Ans 10:

Class : Class 5
It is not c because new plants can rise by vegetative reproduction which are not by seeds.It is by roots, stem or leaves. what, in case of byrophyllum plant.

Ans 11:

Class : Class 5
i pressed option c but its incorrect

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Subject :NSO    Class : Class 6

Four rods of equal length and thickness but of different materials are coated with wax in the same manner. They are fixed to a trough containing hot water. The given diagram illustrates what happens to the wax on each rod after five minutes.

What can you conclude from the given diagram?
(i) The aluminium rod conducts heat better than the brass rod.
(ii) The aluminium rod conducts heat better than the copper rod.
(iii) The glass rod conducts heat better than the copper rod.
(iv) The wax on the copper rod melts faster than the wax on the brass rod.

A (i) and (iv)
B (ii) and (iii)
C (i), (ii) and (iii)
D (ii), (iii) and (iv)


Ans 1:

Class : Class 7
ACCORDING TO ME THE CORRECT ANSWER IS B , FIRST WE HAVE TO UNDERSTAND THE PICTURE AND THEN ANSWER

Ans 2:

Class : Class 6
It must be 'B' not 'A'

Ans 3:

Class : Class 6
it cannot be as you have said because the wax is dripping from the glass rod whereas on the copper rod, it is as it was first placed. And they will not give us a diagram if they are going to ask something not related to it.So, the answer must be B and not A.

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6
Sorry for giving the wrong information. At the beginning even I thought the answer was B.If you click the solution button, it says that since the copper rod has the least amount of wax on it, it is the better conductor as all the other wax on it has melted and fell down. That is why the answer is A not B

Ans 6:

Class : Class 6
I too agree with you .It's B and not A

Ans 7:

Class : Class 3
the wax has been applied all over the rod. copper has the least amount of wax on it. So it is the best conductor of heat whereas the glass rod has the most amount of wax thus it is the weakest conductor of heat.Thus,the option "A" is the correct answer

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Subject :NSO    Class : Class 1

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1

The correct answer is D

In transverse wave, vibration of a wave is perpendicular to its direction of propagation of wave.


Ans 2:

Class : Class 9
The correct answer is D. In a transverse wave the direction of the movement of the particle is perpendicular to direction of motion of the wave. So, over here, when we move the end Q from left and right , it will produce a transverse wave,. You can check it by observing it from the top.

Ans 3:

Class : Class 8

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8

Ans 2:

Class : Class 7
yeah the answer is a

Ans 3: (Master Answer)

Class : Class 1

The correct answer is A.

Sugar syrup is neutral and hence the colour of blue litmus and red litmus remains unchanged. Tamarind juice is acidic, so blue litmus turns red but red litmus does not change its colour. Lime water and soap solution are basic in nature which turn red litmus blue whereas blue litmus remains unchanged.


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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1

Fish Y will be least affected as it is camouflaging with the sea weeds. Fish Y can easily escape from the predator by blending with the surrounding environment.


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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
i think b is the correct answer

Ans 2:

Class : Class 7
B is the correct answer

Ans 3:

Class : Class 7
why?

Ans 4:

Class : Class 7
It is cooling towards room temperature so it does not solidify since the freezing point is below room temperature.

Ans 5:

Class : Class 7
i think b is correct

Ans 6:

Class : Class 7
at 4 degree celsius water starts expanding and 'x' shows the same the room temperature might have been near or equal to the freezing point of water(eg room temperature of regions like arctic and antarctic)

Ans 7:

Class : Class 8
Also freezing and melting point of water is 0 degrees celsius

Ans 8:

Class : Class 7
Three states - gas , liquid & solid When hot water temp is going down it will be ultimate become solid ie ice But before becoming ice temp will stagnant for some time where in both states liquid & solid co-exist==> some part of liquid is in ice form. X is the same state where in solid and liquid will co-exist. Hence option 4 is correct(solidification& evaporation) Note: Could not attach gif .It would have made it more clear.

Ans 9:

Class : Class 7
I think B is the correct answer because there is no solidification taking place or else the water would have turned into ice. plus no solidification can take place when water is at room temperature.

Ans 10:

Class : Class 7
I think b is correct because there is no solidification

Ans 11:

Class : Class 8
It cools towards room temperature so it does not freeze

Ans 12:

Class : Class 7
i think b is the correct answer

Ans 13:

Class : Class 6
b is the correct answer

Ans 14:

Class : Class 7
There is no proper solution for this question which will make it more confusing as everyone will have different opinions in this question.

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