The excessive exposure of humans to ultraviolet rays results in :

(i) damage to immune system (iii) skin cancer

(ii) damage to lungs (iv) peptic ulcers

(a) (i) and (ii) (b) (ii) and (iv) (c) (i) and (iv) (d) (iii) and (iv)

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Solution

(c) (i) and (iii)

Excessive exposure of humans to ultraviolet rays results in skin cancer and damage to the immune system

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Question 11
Excessive exposure of human beings 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)

Q. Excessive exposure of humans to UV-rays results in
(i) Damage to immune system
(ii) Damage to lungs
(iii) Skin cancer
(iv) Peptic ulcers

Q. Ozone higher up in the atmosphere acts as a shield to prevent UV rays from reaching the Earth's surface These UV rays are responsible for which of the following diseases?
(i) Skin cancer (ii) Eye damage (iii) Lung cancer
(iv) Damage to immune system (v) Colour blindness

Q. Question 9
Among the statements given below select the ones that correctly describe the concept of sustainable development
(i) Planned growth with minimum damage to the environment
(ii) Growth irrespective of the extent of damage caused to the environment
(iii) Stopping all developmental work to conserve the environment
(iv) Growth that is acceptable to all the stakeholders.

(a) (i) and (iv)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (iii) only

Q. Match the List I to List II :
(A)A-ii; B-i; C-iii; D-iv
(B)A-i; B-ii; C-iii; D-iv
(C)A-iii; B-ii; C-iv;D-i
(D) A-iv; B-iii; C-ii; D-i

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The excessive exposure of humans to ultraviolet rays results in : (i) damage to immune system (iii) skin cancer (ii) damage to lungs (iv) peptic ulcers (a) (i) and (ii) (b) (ii) and (iv) (c) (i) and (iv) (d) (iii) and (iv)

(c) (i) and (iii) Excessive exposure of humans to ultraviolet rays results in skin cancer and damage to the immune system

The excessive exposure of humans to ultraviolet rays results in :

(i) damage to immune system (iii) skin cancer

(ii) damage to lungs (iv) peptic ulcers

(a) (i) and (ii) (b) (ii) and (iv) (c) (i) and (iv) (d) (iii) and (iv)

(c) (i) and (iii)

Excessive exposure of humans to ultraviolet rays results in skin cancer and damage to the immune system