Tag: evs - i

The ionosphere is not another atmospheric layer. It occupies the same region of the upper atmosphere as the thermosphere. In this region of the atmosphere the Sun's energy is so strong that it breaks apart molecules and atoms of air, leaving ions. So the correct answer is 'Thermosphere'.

Troposphere is the layer where all weather occurs. this is the lowest layer.

Troposphere is the lowest layer in the earth's atmosphere. it is the same layer in which all the change in weather takes place. Lapse rate is the rate at which the temperature drops due to the difference in elevation. the more the altitude the more the drop in temperature is there. The lapse rate of $6.5$ is there for the level of $0$ to  $11,000$ m. This is the region in which troposphere lies. 

The Ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. As the ozonosphere only contains high levels of ozone gas, therefore all the other things such as the dust particles. water vapours and CO2 are absent from it.