Question

गरम खाने की सुगंध हमें दूर से मिलने लगती है क्यों​

Answer 1

Answer

It is because the process of diffusion is faster in hot material [food] than

cold material.

Answer 2

kyunki garam khane se jo garmi paida hoti hai vo vatavaran(atmosphere) mein ghul(mixed) jaati hai jisse vo hmare naak tak as jati or hum usko sungh(smell) skte hain.

sorry if u think this is irrelevant answer :(

hopefully its helped u dear :)