Excessive exposure of humans to UV-rays results in 1. damage to immune – McqOptions

MCQOPTIONS

1.	Excessive exposure of humans to UV-rays results in 1. damage to immune system 2. damage to lungs 3. skin cancer 4. peptic ulcers Which of the above is/are correct?
A.	1 and 2
B.	2 and 3
C.	1 and 3
D.	2 and 4
Answer» D. 2 and 4

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