Name the layers as we move from space to the surface of the earth.

1. Thermosphere - Mesosphere - Stratosphere - Troposphere
2. Troposphere - Mesosphere - Stratosphere - Thermosphere
3. Troposphere - Stratosphere - Mesosphere - Thermosphere
4. Thermosphere - Stratosphere - Mesosphere - Troposphere

Which amongst the following is not a domain of the Biosphere?

1. Lithosphere
2. Exosphere
3. Hydrosphere
4. Atmosphere

The upper limit of the stratosphere is known as:

1. Stratopause
2. Statapause
3. Upper strata
4. Upper limital strata

What is the uppermost layer in the structure of the atmosphere?

1. Ionosphere
2. Exosphere
3. Troposphere
4. Mesosphere