Question

Draw a diagram showing various vertical layers of the atmosphere and the temperatures in each layer. Give importance of each of these layers.

Answer 1

Layer	Height	Temperature	Importance
Troposphere	0–8 km (poles) to 0–16 km (equator)	15°C to –57°C (decreases with height)	Contains about 90% of atmospheric gases and air we breathe; site of clouds and weather
Stratosphere	16–50 km	–57°C to 0°C (increases with height)	Contains ozone layer (15–30 km) that absorbs harmful UV rays
Mesosphere	50–80 km	0°C to –80°C (decreases with height)	Meteorites burn up here due to air resistance
Thermosphere (Ionosphere)	Above 80 km	–80°C to 1000°C or more (increases with height)	Reflects radio waves for long-distance communication; satellites orbit here

Each layer protects life, supports weather or enables communication, making the atmosphere essential for the biosphere.