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MCQs

Total Questions : 10
Question 1.


Which of the following is not as a consequence of global warming?


  1.     worsening health effects
  2.     increased agricultural productivity worldwide
  3.     peptides into amino acids
  4.     Increasing incidents of skin cancer
 Discuss Question
Answer: Option B. -> increased agricultural productivity worldwide
:
B
 
Question 2.


The greenhouse effect is caused primarily by:


  1.     ozone destroying aerosol sprays
  2.     water vapour
  3.     carbon di-oxide
  4.     Factories & automobile fumes
 Discuss Question
Answer: Option D. -> Factories & automobile fumes
:
D
 
Question 3.


The increase in the concentration of CO2 in our environment in last fifty years; since 1960 is about


  1.     10%
  2.     14%
  3.     20%
  4.     40%
 Discuss Question
Answer: Option C. -> 20%
:
C
 
Question 4.


Which of the following is a prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?


  1.     Neurological disorder
  2.     Increased skin cancer
  3.     Damage to digestive system
  4.     Damage to eyes
 Discuss Question
Answer: Option B. -> Increased skin cancer
:
B
 
Question 5.


What is the harm from the depletion of Earth ozone layer


  1.     The average temperature of earths surface will increase gradually
  2.     Increased amount of Ultra violet radiation will reach earths surface
  3.     Sea levels will rise as the polar ice caps will gradually melt
  4.     Rivers will have continuous flooding
 Discuss Question
Answer: Option B. -> Increased amount of Ultra violet radiation will reach earths surface
:
B
 
Question 6.


Acid rain is formed due to contribution from the following pair of gases.


  1.     Oxygen and nitrous oxide
  2.     methane and sulphur dioxide
  3.     Carbon dioxide and sulphur dioxide
  4.     Methane and carbon dioxide
 Discuss Question
Answer: Option A. -> Oxygen and nitrous oxide
:
A
 
Question 7.


The main cause of global warming is:


  1.     pollution from factories and automobiles
  2.     orbital eccentricities of earth & variations in the sun output
  3.     the greenhouse effect
  4.     Depletion in green cover
 Discuss Question
Answer: Option A. -> pollution from factories and automobiles
:
A
 
Question 8.


Which of the following is not a class of insecticide?


  1.     carbamates
  2.     auxins
  3.     chlorinated hydrocarbons
  4.     organophosphates
 Discuss Question
Answer: Option A. -> carbamates
:
A
 
Question 9.


The process of accumulating higher and higher amounts of a toxic material such as PCBs within the body of any animal is called


  1.     bioaccumulation
  2.     biological amplification
  3.     biological half-life
  4.     biological persistence
 Discuss Question
Answer: Option B. -> biological amplification
:
B
 
Question 10.


Which of the following is not a primary contributor to the greenhouse effect?


  1.     carbon mono-oxide
  2.     nitrous oxide
  3.     chlorofluorocarbons
  4.     Water vapour
 Discuss Question
Answer: Option C. -> chlorofluorocarbons
:
C
 

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