Question

which layer of air acts as a medium of hotter and cooler​

Answer 1

Answer:

thermosphere is the air as a medium of hotter and cooler.

Answer 2

$\huge{\pink{\mid{\boxed{αnѕωєr}\:{\mid}}}}$

The thermosphere is often considered the "hot layer" because it contains the warmest temperatures in the atmosphere. Temperature increases with height until the estimated top of the thermosphere at 500 km. Temperatures can reach as high as 2000 K or 1727 ºC in this layer (Wallace and Hobbs 24).