The chemical entities present in thermosphere of the atmosphere are
CFCl2 is responsible for the decomposition of ozone to oxygen. Which of the following reacts with ozone to form oxygen?
Which of the following damages WBC, bone-marrows and lymph nodes
In Antarctica ozone depletion is due to the formation of following compound
Green chemistry means such reactions which
What are the chief pollutants of the atmosphere which are most likely to deplete the ozone layer
Which of the following strategy is not a correct approach to reduce global warming
Permissible noise levels in a residential area at night time is
Major aerosol pollutant present in the jet plane emission is
One of them contributes maximum to air pollution
Which one of the following is not a common component of photochemical smog
carbon monoxide (CO) is harmful to man because
Which one of the following statements regarding photochemical smog is not correct
Metal generally present in polluted air is
The photochemical smog can be suppressed by
Which of the following is secondary pollutant?
Which compound is mainly responsible for the depletion of ozone layer?
White lung cancer is caused by
Use of chlorofluorocarbons is not encouraged because
Green house effect is caused by
Which of the following is not an air pollutant?
What is DDT among the following?
Which of the following is a measurement of water pollution ?
The ozone layer forms naturally by
The smog is essentially caused by the presence of
Ozone layer of stratosphere requires protection from indiscriminate use of
In which part of the atmosphere, ozone layer is present ?
Which of the following is responsible for the depletion of the ozone layer in the upper strata of the atmosphere?
UV radiation from sun causes a reaction that produces
The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was
The non-viable particulate is
Which of the following does not contribute towards the formation of photochemical smog ?
Addition of phosphate fertilizers into water leads to
The gas that is not considered as a green house gas is
Which of the following statements about polar stratospheric clouds (PSCs) is not correct?
Among the following compounds, which one is not responsible for the depletion of ozone layer?
When rain is accompanied by a thunderstorm, the collected rain water will have a pH value
The recommended concentration of fluoride
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