Excessive exposure of humans to UV-rays results in

damage to immune system

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damage to lungs

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skin cancer

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peptic ulcers

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Solution

The correct options are
A damage to immune system
C skin cancer
UV rays or ultraviolet rays can affect human health in many ways like causing skin cancer and a weakening immune system. Excessive exposure to UV rays can lead to skin cancer because the UV rays cause damage to the DNA in skin cells. UV rays also affect the distribution and activity of cells that trigger immune responses thus, making the immune system weak. UV rays first affect the skin and the whole body.
So, the correct answer is option A and C i.e. 'damage to immune system' and 'skin cancer'.

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Similar questions

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

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)

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)

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.  Consider the following statements about UV rays

1. UV-C have the shortest wavelength among all three types of UV rays.
2. UV-A is completely absorbed by Ozone layer.
3. Humans have large exposure to UV-A radiations.

Which of the above statements are correct?

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