Which of the following are direct environmental consequences of the depletion of the ozone layer? Flooding II. Cataract III. Global warming IV. Skin caner V. Poor resistance to diseases
A. II, III, IV B. III, IV, V C. II, IV, V D. I, II, III
Correct Answer: C
Explanation
Ozone layer protects the earth's surface from excess ultraviolet radiation in sunlight. Depletion of the ozone layer may cause: (i) Various forms of skin cancer (ii) Cataract (iii)Severe sunburns (iv) Poor crop yields by affecting photosynthesis (v) Ageing of the skin (vi) Death of useful micro - organisms (vii) Poor resistance to diseases. It can cause a green - house effect, gradually warming the earth to the point where polar ice caps start melting and cause flooding \(\Rightarrow\) this is a very long term effect.
