Question

why do we keep some distance between two railway tracks​

Answer 1

Answer:

Heya ❤ here's your answer ✌

All metals expand when heated. If two railway tracks are laid together without any gap between them they will push against each other when they expand in the day time because of the heat of the sun, and when they cool down in the night they will contract and return to their original state pulling against each other.

Answer 2

Answer:

Agar hum Gap nahi denge to Accident ho jayega.