Question

the layer of atmosphere touching the surface of the earth is called

Answer 1

The layer of atmosphere touching the surface of the earth is called troposphere.

Answer 2

There are five layers of Atmosphere
Exosphere: 700 to 10,000 km
Thermosphere: 80 to 700 km
Mesosphere: 50 to 80 km
Stratosphere: 12 to 50 km
Troposphere: 0 to 12 km

The Lowest layer is Troposphere .

Hence ,The Layer of Atmosphere touching the surface of earth is known as Troposphere..

It constitutes 75% of the gas mass in the atmosphere.Its average height is 13 km .It is 8km at poles and 18m at equator .