Question

9.Which of the following statement given below is correct? *
Iron rims are cooled before they are placed on cart wheels
A metal cap on a glass bottle gets tight on warming the neck of the bottle
Telephone wires sag in winter , but become tight in summer
A little space is left between two sections of the rail tracks for expansion

Answer 1

Answer:

I don't know Bhaiya okay Nikhal

Answer 2

Answer:

c is correct one

Explanation:

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