When we go to the height the temperature decreases,why? generally the distance between sun and us decreases.

Sunlight is absorbed by the ground and then the heated ground emits Infrared Rays. These reflected IR rays are responsible for heating the atmosphere. The Sunlight does not heat up the atmosphere.

As we climb to bigger heights, the IR rays emitted from the earth decrease in intensity and hence the temperature drops.

our earth was obsrbed tempareture by sun  thats why we feel very hot when we are so near the earth

when we are go far to earth distence increases between earth and us that means we feel cool