Biology MCQ on Ozone Layer Depletion for NEET and Medical Exam 2021
MCQ on Ozone Layer Depletion: Biology is one of the most important and vital sections in NEET. It includes theories, descriptions, discoveries, diagrams, definitions, explanation of differences and relations. Most of the concepts covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12. Other related sources make up for the rest of the syllabus.
In this post we are providing you MCQ on Ozone Layer Depletion, which will be beneficial for you in upcoming NEET, AIIMS, JIPMER, PGIMER, CBSE Board, ICSE Board, Class 12th, 11th.
MCQ on Ozone Layer Depletion
Q1. UV rays is higher in summer as _______. (c) sun is closer to planet earth so UV rays have a shorter distance to travel and reach us
a) during summer, ozone is more in the atmosphere
b) sun is busy in summer specially
c) sun is closer to planet earth so UV rays have a shorter distance to travel and reach us
d) none of the above
Q2. Main cause of ozone holes and its depletion is _______. (d) all of these
a) propellants
b) foam-blowing agents
c) halocarbon refrigerants
d) all of these
Q3. Which of the following form(s) of oxygen is/are involved in ozone-oxygen cycle ? (d) all of these
a) triatomic oxygen (O3)
b) diatomic oxygen (O2)
c) atomic oxygen (O)
d) all of these
Q4. Good ozone is found in the _______. (a) stratosphere
a) stratosphere
b) ionosphere
c) troposphere
d) mesosphere
Q5. Which of the following is a major risk linked with extreme ultraviolet rays through the atmosphere as a result of ozone layer depletion ? (d) increased skin cancer
a) neurological disorder
b) digestive system gets damaged
c) increased liver cancer
d) increased skin cancer
Q6. Ozone-depleting substance chiefly utilized in _______.
(I) chimneys (b) Only IV
(II) all of the human activities
(III) burning fossil fuels
(IV) cooling and refrigeration applications and in the manufacturer of foam products
a) ALL
b) Only IV
c) Only I, II and III
d) Only I and II
Q7. Which of the following is not the consequence of ozone layer depletion ? (c) tides
a) malignant melanoma – skin cancer type
b) increased ultraviolet radiations
c) tides
d) cyanobacteria are sensitive to UV rays and would be affected by its increase
Q8. Ozone can be destroyed by the following free radical(s) _______. (d) all of these
a) chlorine radical (Cl)
b) hydroxyl radicals (OH)
c) nitric oxide radical (NO)
d) all of these
Q9. Greenhouses gases causing a rise of 3℃ rise in the overall global temperature in the past century are CFCs. The CFC used in refrigerators is _______. (b) Freon
a) Ammonia
b) Freon
c) Methane
d) carbon dioxide
Q10. Montreal protocol is related to the _______. (d) ozone layer depletion
a) food security
b) global warming
c) sustainable development
d) ozone layer depletion
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