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Standard XII
Chemistry
Land Pollution - Pesticides and Biomagnificaiton
Question

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
  1. (i), (ii), (iv) & (v)
  2. (i), (ii) & (iii)
  3. (i), (iii), (v)
  4. (i), (ii), (iii), (iv) & (v)

A
(i), (ii) & (iii)
B
(i), (ii), (iii), (iv) & (v)
C
(i), (ii), (iv) & (v)
D
(i), (iii), (v)
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Solution
Verified by Toppr

The disease cause by UV rays are
1. Skin cancer
2. Eye damage
3. Damage to immune system
4. Colour blindness

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Similar Questions
Q1
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
View Solution
Q2
Excessive exposure of humans to UV-rays results in
(i) Damage to immune system
(ii) Damage to lungs
(iii) Skin cancer
(iv) Peptic ulcers
View Solution
Q3

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)

View Solution
Q4
The excessive exposure of humans to ultraviolet 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)
View Solution
Q5
Read the following statements carefully and select the incorrect ones.

(i) Development of the fertile top-soil takes centuries, but it can be easily removed due to human activities such as over-cultivation, unrestricted grazing, etc.
(ii) Waterlogging results in soil salinity.
(iii) UV rays are responsible for the degradation of the ozone shield in the atmosphere.
(iv) Ozone present in the stratosphere acts as a shield absorbing UV radiation coming from the Sun.
(v) Global warming can be controlled by increasing the use of fossil fuels.

View Solution