Question

Excessive exposure of humans to UV-ray s results in [NCERT Exemplar Problems]
(i) damage to immune system
(ii) damage to lungs
(iii) skin cancer
(iv) peptic ulcer
(a) (i) and (ii)
(b) (ii) and (iv)
(c) (i) and (iii)
(d) (iii) and (iv)

Answer 1

THE ANSWER IS C

UV RAYS AN LEAD TO SKIN CANCER ,IT CAN DAMAGE THE EYES LEADING TO CATARACT ,IT CAN ALSO DAMAGE A PERSON S IMMUNE SYSTEM BY LOWERING THE BODYS RESISTANCE TO DISEASES

I HOPE THIS HELPS( ╹▽╹ )

Answer 2

Answer:

The answer is option (C).

Explanation:

UV RAYS can cause various types of skin cancers and can also damage the immune system.

These are statement directly from NCERT BIOLOGY XII.