Question 6 - MCQs from (Past Year Papers & NCERT Exemplar) - Chapter 15 Class 10 - Our Environment

Excessive exposure of humans to UV-rays results in

(i) damage to immune system.

(ii) damage to lungs.

(iii) skin cancer.

(iv) peptic ulcers.

(a) (i) and (ii)

(b) (ii) and (iv)

(c) (i) and (iii)

(d) (iii) and (iv)

Answer:

Checking the options:

• (i) damage to immune system - This is true .
• (ii) damage to lungs - This is false. 
• (iii) skin cancer - This is true.
• (iv) peptic ulcers - This is false.

Option (i) and (iii) are correct.

So, the correct answer is (c).