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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 1
The correct answer is d.

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Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

The correct answer is A.


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4

Ans 2:

Class : Class 5
The correct answer is CRhinoceros does not have scales on body while snake, lizard and fish have scales as body covering

Ans 3:

Class : Class 4
Do lizards really have scales? I don't think so.

Ans 4: (Master Answer)

Class : Class 1

The correct answer is C.

Rhinoceros does not have scales on body while snake, lizard and fish have scales as body covering.


Ans 5:

Class : Class 5
The correct answer is CRhinoceros does not have scales on body

Ans 6:

Class : Class 4
Snakes can peel their skin of while the others can’t

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
The backbone or the vertebral column is a long, bony, rod–like structure, which extends from the base of the skull to the lower back. The animals which possess the backbone are called vertebrates and the ones which do not possess it are called invertebrates. Ant, spider, octopus, amoeba and starfish, are all invertebrates.So, the answer is B. Amoeba does not lay eggs. It is an unicellular organism which divide by binary fission.

Ans 2:

Class : Class 6
the ans is b

Ans 3:

Class : Class 7
amoeba divides itself it does not lay eggs. they all lACK A BACKBONE

Ans 4: (Master Answer)

Class : Class 1
The backbone or the vertebral column is a long, bony, rod–like structure, which extends from the base of the skull to the lower back. The animals which possess the backbone are called vertebrates and the ones which do not possess it are called invertebrates. Ant, spider, octopus, amoeba and starfish, are all invertebrates.So, the answer is B. Amoeba does not lay eggs. It is an unicellular organism which divide by binary fission.

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Subject :NSO    Class : Class 10

Ans 1:

Class : Class 5
Since the residue obtained was black in colour and we know that only Zinc and Copper on reacting with Iron give a black residue hence the answer is Option D

Ans 2: (Master Answer)

Class : Class 1
Here, the answer is D. Black residue is obtained in test tubes I and III i.e., iron gets displaced in test tubes I and III. Therefore, metals P and R should be more reactive than iron. No change is observed in test tubes II and IV hence, metals Q and S should be less reactive than iron.

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Subject :NSO    Class : Class 10

Ans 1:

Class : Class 5
Option D

Ans 2: (Master Answer)

Class : Class 1
Here, the answer is D. The method used to extract metals from the ore in which they are found depends on their reactivity. For example, reactive metals such as aluminium are extracted by electrolysis, while a less-reactive metal such as iron may be extracted by reduction with carbon or carbon monoxide. The metals low in the reactive series are very less reactive. The oxides of such metals can be reduced to metals by heating alone e.g. mercury is obtained from its ore, cinnabar (HgS), by the process of heating. Metals like iron, zinc, lead etc. occur as sulphides or carbonates in nature. First the ore is converted into its oxide form This is done by either roasting or by calcination. The metal oxide is reduced to metal by using suitable reducing agent such as Carbon.

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Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1
Here, Option A shows - Dandelion which is dispersed by wind Option B shows - Lotus which is dispersed by water Option C shows - Xanthium which is dispersed by animals Option D shows - Pea which is dispersed by explosion So, the answer is B.

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Class : Class 1
Here, the answer is (d). The right hand rule can be used to determine the direction of the force on a current-carrying wire placed in an external magnetic field.

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Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1
Kindly mention your query

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