Botany - Environmental Issues Question with Solution | TestHub

BotanyEnvironmental IssuesPollutionEasy2 minPYQ_2020
BotanyEasysingle choice

Which of the following is incorrect about ozone?

i.The bad ozone is found in the upper part of atmosphere
ii.Thickness is measured in terms of Dobson units
iii.Ozone gas is formed by action on UV rays on molecular oxygen
iv.Ophthalmic problems may increase with ozone depletion

Options:

Answer:
D
Solution:

Good ozone found in upper part of atmosphere called as stratosphere absorbs UV radiation from sunlight which are injurious to living organisms. Bad ozone is formed in the lower atmosphere (troposphere). Ozone is formed by action of UV rays on molecular oxygen. Ozone is measured from top to bottom in Dobson units. Due to ozone depletion there is increased risk of ophthalmic (eye) problems such as inflammation of cornea known as snow blindness, cataract and permanent damage of cornea due to absorption of UV radiation.

Stream:NTA_ABHYAS_NEETSubject:BotanyTopic:Environmental IssuesSubtopic:Pollution
⏱ 2mℹ️ Source: PYQ_2020

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