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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
ANS IS 154

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5

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Subject :NSO    Class : Class 9

Different substances are classified as :
I. Pure substance
II. Homogeneous mixture
III. Heterogeneous mixture
A few common substances are listed below.
(i) Air, (ii) Graphite, (iii) Gasoline, (iv) Diamond, (v) Tap water, (vi) Iron, (vii) Sodium chloride, (viii) Iodised salt, (ix) Brass, (x) Oil and water

Which of the following represents the correct classification of the given substances?
A I - (ii), (vi), (ix); II - (i), (v), (vii); III - (iii), (iv), (viii), (x)
B I - (ii), (iv), (vi), (vii); II - (i), (iii), (v), (viii), (ix); III - (x)
C I - (i), (iv), (vii), (ix); II - (ii), (v), (viii); III - (iii), (vi), (x)
D None of these represents the correct match.


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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
according to reactivity series K>Na>Ca>Mg>Al>Zn>Fe>Pb>H>Cu>Hg>Ag>Au>Pt the metal should be between Al and Cu and hence Fe is the answer

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Read the given statements and select the correct option.
Statement 1 : After harvesting, the stems of the jute plants are tied into bundles and retted (soaked) in water for about 20 days.
Statement 2 : The process of retting softens the tissues and helps to separate the fibres.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.


The process of retting, rottens or softens the stem tissues of jute plant so it is easier to separate the fibres from the stem.

Ans 1:

Class : Class 6
The correct answer is (A).

Ans 2: (Master Answer)

Class : Class 1

A

Jute is a fibre obtained from stem of jute plant. Jute is harvested during flowering stage. The stems are cut off close to the ground and are left to dry for sometime. Dried stems are then tied into bundles and soaked in water for about 20 days. This process is called retting. It softens the tissue and permits the fibres to be separated.

 


Ans 3:

Class : Class 6
A

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

B

The food-chain is starting with X. That means X is a plant (Producers). X is eaten by Y. So, Y must be a Herbivore (for example, animals like deer, rabbit, goat, etc.). And Y is eaten by Z. So, Z must be Carnivore (for example, animals like wolf, lion, hyena, etc.).


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Subject :NSO    Class : Class 8

Read the given paragraph and answer the following questions.
Two metal rulers of lengths 30 cm and 60 cm are kept in such a manner that a 30 cm ruler extends about 15 cm over the edge and a 60 cm ruler extends about 30 cm over the edge. Both the ends are flicked.
Read the given statements and select the correct option.
Statement 1 : The note heard in the vibration of 30 cm ruler is louder when flicked with larger amplitude.
Statement 2 : Loudness of a sound depends on the amplitude of vibrations.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Statement 1 is false but statement 2 is true.


DOES NOT ANYONE THINK THAT THE ANSWER SHOULD BE D?????

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Subject :NSO    Class : Class 8

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