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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
c

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Subject :NSO    Class : Class 9

Select the incorrect differences between collenchyma and sclerenchyma.

Collenchyma Sclerenchyma
(i) It is made up of dead cells. Its cells are living.
(ii) Lumen or cell cavity is wide. Lumen or cell cavity is usually narrow.
(iii) It provides hardness to the region where it occurs. It keeps the organ soft.
(iv) Wall thickening is not uniform. Wall thickening is uniform.
(v) Pits are simple and straight. Pits are simple, oblique and may be branched.


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


I think correct answer is b. But SOF is saying it is c.

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Any help why?

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
explain

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 7

Match column I with column II and select the correct option from the codes given below.

Column I Column II
(P) Expansion of metals on heating (i) Neither physical nor chemical change
(Q) A stone kept in the sunlight (ii) Chemical change
(R) Burning of a candle (iii) Combination of physical and chemical changes
(S) Curdling of milk (iv) Physical change

A (P) - (iv), (Q) - (i), (R) - (iii), (S) - (ii)
B (P) - (iv), (Q) - (iii), (R) - (ii), (S) - (i)
C (P) - (i), (Q) - (ii), (R) - (iii), (S) - (iv)
D (P) - (i), (Q) - (iv), (R) - (ii), (S) - (iii)


A IS THE CORRECT ANSWER BECAUSE CURDING OF MILK IS A CHEMICAL CHANGE

Ans 1:

Class : Class 7
A IS THE CORRECT ANSWER BECAUSE CURDING OF MILK IS A CHEMICAL CHANGE

Ans 2:

Class : Class 7

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