The presence of Ozone layer in the atmosphere was first observed by:

Related MCQs

• The most dangerous pollutant to Ozone layer is:
• Ozone layer is known as the earth’s
• The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called
• The layer of the atmosphere closest to Earth is called the:
• Major cause of Ozone depletion is due to which chemical?
• How is the atmosphere, hydrosphere and lithosphere connected ?
• Which gas is likely to be reduced in the atmosphere by deforestation?
• Energy is returned to the atmosphere in the form of
• Most abundant noble gas of the atmosphere is
• Certain gases in the atmosphere help maintain the Earth’s temperatures and climate. These are called: