Previous year MCQs

UPPSC 2014 GS-I General science
Question

Ozone protects biosphere from:

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Ultraviolet rays

Detailed Solution:

The correct answer is “Ultraviolet rays”.

Ozone is a gas found in the Earth's stratosphere, and it acts as a natural shield, absorbing harmful ultraviolet (UV) radiation from the sun. UV radiation can cause skin cancer, cataracts, and damage to plants.

Similar Questions:

Relative humidity is measured by:
  1. A) Hydrometer
  2. B) Hygrometer
  3. C) Lactometer
  4. D) Potentiometer
Which one of the following types of coal contains a higher percentage of carbon than the rest:
  1. A) Anthracite
  2. B) Bituminous coal
  3. C) Lignite
  4. D) Peat
Match List - I with List - II and select the correct answer from the codes given below:
List - I - List - II

A. Growth in Food Production - 1. Green Revolution
B. Milk Production - 2. Blue Revolution
C. Fisheries - 3. White Revolution
D. Fertilizers - 4. Grey Revolution

Codes:
A B C D
  1. A) 1 3 2 4
  2. B) 3 1 4 2
  3. C) 2 4 3 1
  4. D) 3 2 4 1
Among the following greenhouse gases, which does not cause ozone pollution in troposphere?
  1. A) Methane
  2. B) Carbon mono-oxide
  3. C) Nitrogen oxides (NOX)
  4. D) Water vapours
The International Crop Research Institute for Semi-Arid Tropics (ICRISAT) is located at:
  1. A) Kolkata
  2. B) Patna
  3. C) Bhubaneshwar
  4. D) Hyderabad
Three communicable diseases prevalent in developing countries caused by unsafe drinking water and bad sanitation are:
  1. A) acute diarrhoea, cancer and gout
  2. B) malaria, acute diarrhoea and schistosomiasis
  3. C) onchocerciasis, leukaemia and arthritis
  4. D) rheumatism, malaria and AIDS
Which one of the following is not achieved by transgenics?
  1. A) Production of biodegradable plastics
  2. B) Production of edible vaccines
  3. C) Production of cloned animals
  4. D) Production of transgenic crops
In countries where polished rice is the mean cereal in their diet, people suffer from
  1. A) Pellagra
  2. B) Beri-Beri
  3. C) Scurvy
  4. D) Osteomalacia
The 'ABC Index' announced by the government of India is related with:
  1. A) Agriculture
  2. B) Communication
  3. C) Health
  4. D) Education
Ozone protects biosphere from:
  1. A) Infra-red rays
  2. B) Ultraviolet rays
  3. C) X-rays
  4. D) Gama rays
Who among the following were the members of the drafting committee of the Constitution?

(i) N. Gopalaswami
(ii) Jawaharlal Nehru
(iii) Alladi Krishnaswami Ayyar
(iv) Sardar Patel

Select the correct answer using the codes given below:

Codes:
  1. A) (i), (iii) and (iv)
  2. B) (i) and (iv)
  3. C) (i) and (iii)
  4. D) (ii), (iii) and (iv)
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R).

Assertion (A): A solution of table salt in a glass of water is homogeneous.
Reason (R): A solution having different composition throughout is homogeneous.

Select the correct answer from the code given below:
Code:
  1. A) (A) is false but (R) is true
  2. B) (A) is true but (R) is false
  3. C) Both (A) and (R) are true but (R) is not the correct explanation of (A)
  4. D) Both (A) and (R) are true and (R) is the correct explanation of (A)