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Sunita from Dps, Greater Noida
Subject :NSO    Class : Class 5

A box is made up of shiny substance 'X'. When dropped on the floor, the box did not break and produced a ringing sound. What could be the substance X?

A Clay
B Rubber
C Mercury
D Iron


Ans 1:

from , rajahmundry
Class : Class 2
 Metals are generall sonorous. That is they make a ringing sound when struck. Therefore, they are used for making bells. Metal wires are used in musical instruments.  Metals such as iron are very strong. Therefore, it is therefore, widely used in the construction of buildings, bridges, railway lines, carriages, vehicles and machinery. SO,Ans is - D

Ans 2:

from , rajahmundry
Class : Class 2
 Metals are generall sonorous. That is they make a ringing sound when struck. Therefore, they are used for making bells. Metal wires are used in musical instruments.  Metals such as iron are very strong. Therefore, it is therefore, widely used in the construction of buildings, bridges, railway lines, carriages, vehicles and machinery So,Ans is D

Ans 3:

from , rajahmundry
Class : Class 2
ans D

Ans 4:

from , rajahmundry
Class : Class 2
ans D

Ans 5:

from , rajahmundry
Class : Class 2
 Metals are generall sonorous. That is they make a ringing sound when struck. Therefore, they are used for making bells. Metal wires are used in musical instruments.  Metals such as iron are very strong. Therefore, it is therefore, widely used in the construction of buildings, bridges, railway lines, carriages, vehicles and machinery So,Ans is D

Ans 6:

from , rajahmundry
Class : Class 2
 Metals are generall sonorous. That is they make a ringing sound when struck. Therefore, they are used for making bells. Metal wires are used in musical instruments.  Metals such as iron are very strong. Therefore, it is therefore, widely used in the construction of buildings, bridges, railway lines, carriages, vehicles and machinery So,Ans is D

Ans 7:

Sunita from Dps, Greater Noida
Class : Class 9
dt

Ans 8:

from , rajahmundry
Class : Class 2
 Metals are generall sonorous. That is they make a ringing sound when struck. Therefore, they are used for making bells. Metal wires are used in musical instruments.  Metals such as iron are very strong. Therefore, it is therefore, widely used in the construction of buildings, bridges, railway lines, carriages, vehicles and machinery. SO,Ans is - D

Ans 9:

from , rajahmundry
Class : Class 2
 Metals are generall sonorous. That is they make a ringing sound when struck. Therefore, they are used for making bells. Metal wires are used in musical instruments.  Metals such as iron are very strong. Therefore, it is therefore, widely used in the construction of buildings, bridges, railway lines, carriages, vehicles and machinery So,Ans is D

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