The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called

Related MCQs

• The presence of Ozone layer in the atmosphere was first observed by:
• According to Water Act 1974,any liquid gas or solid discharge from any premises used for carrying industrial operation or process or treatment is called
• The layer of the atmosphere closest to Earth is called the:
• Certain gases in the atmosphere help maintain the Earth’s temperatures and climate. These are called:
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• Threat of global warming is increasing due to increasing concentration of
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• Energy is returned to the atmosphere in the form of
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