Practicing Success
Practicing Success
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Which among the following statement is incorrect about ozone ? |
It acts as a shield absorbing ultraviolet radiation from the sun. The thickness of the ozone from the ground to the top of the atmosphere is measured in terms of Dobson units (DU). Ozone is found in the upper part of the atmosphere called the stratosphere Ozone gas is continuously formed by the action of gamma rays on molecular oxygen. |
Ozone gas is continuously formed by the action of gamma rays on molecular oxygen. |
| ozone is found in the upper part of the atmosphere called the stratosphere, and it acts as a shield absorbing ultraviolet radiation from the sun. UV rays are highly injurious to living organisms since DNA and proteins of living organisms preferentially absorb UV rays, and its high energy breaks the chemical bonds within these molecules. The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of Dobson units(DU). Ozone gas is continuously formed by the action of UV rays on molecular oxygen, and also degraded into molecular oxygen int he stratosphere. There should be a balance between production and degradation of ozone in the stratosphere. |
