Explanation
Ozone is a protective blanket that is present in the stratosphere which protects earth from harmful effects of UV radiations that are present in sunlight.
Chlorofluorocarbons and other halogenated compounds cause ozone depletion.
Ozone is a protective blanket that is present in stratosphere which protects Earth from harmful effects of UV radiations that are present in sun light.
Ozone holes are formed in Antarctica and these are due to special clouds that form in the stratosphere called polar stratospheric clouds. Clouds usually do not form in stratosphere, this can happen only at such low temperatures. These clouds accumulate pollutants resulting in formation of ozone holes.
Addition of phosphates and nitrates/fertilizers into water leads to nutrient enrichment which is also called as eutrophication. It is the enrichment of water bodies with excessive nutrients and fertilizers. This is a kind of water pollution, because excessive nutrients result in growth of plants and algae which consume oxygen present.
The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone ($$O_3$$) in relation to other parts of the atmosphere
$$\textbf{Correct option: }$$ A
$$\textbf{Solution: }$$
$$\textbf{Option (A) }$$
$$\bullet$$The energetic ultraviolet photon splits an oxygen molecule to form ozone molecules is known as photolysis.
$$\bullet$$It is assumed that the two resulting oxygen atoms will each form an ozone molecule.
$$\bullet$$Ozone layer is responsible for protecting the earth's atmosphere from the harmful $$\bullet$$Ultraviolet rays received from the sunlight.
$$\bullet$$The thinning of the ozone layer is known as the ozone layer depletion that can result in the increase of the UV radiation reaching the earth's atmosphere.
$$\bullet$$The major constituents responsible for ozone layer depletion are chlorofluorocarbons (CFCs) such as freons, halons, and other compounds.
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