Doctor हमेशा सफेद Coat क्यों पहनते हैं ? ? | why doctors wear white coat | #shorts

Why do people prefer to wear white clothes in summer ?

Why Cr is used for coating Fe ?

Explain why iron sheets are coated with zinc.

In guinea pigs, smooth coat (S) is dominant over rough coat (s) and black coat (B) is dominant over white coat (b). In the cross SsBb xx SsBb, how many of the offsprings will have a smooth black coat an average?

Why is a layer of zinc coated over iron?