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MCQs

Total Questions : 560 | Page 56 of 56 pages
Question 551. 'Bromine' free radical are more destructive than
  1.    Carbon
  2.    Chlorine
  3.    Phosphorous
  4.    Nitrogen
 Discuss Question
Answer: Option B. -> Chlorine
Answer: (b).Chlorine
Question 552. CFCs can form bubbles in foam, making it a good
  1.    Conductor
  2.    Insulator
  3.    Equipement
  4.    Device
 Discuss Question
Answer: Option B. -> Insulator
Answer: (b).Insulator
Question 553. How many treaties were signed to ban CFCs?
  1.    Two
  2.    Three
  3.    Four
  4.    Five
 Discuss Question
Answer: Option B. -> Three
Answer: (b).Three
Question 554. A single molecule of 'feron' gas can destroy a thousands of
  1.    Ozone Molecules
  2.    Mathene molecules
  3.    Cl molecules
  4.    Bromine Oxide
 Discuss Question
Answer: Option A. -> Ozone Molecules
Answer: (a).Ozone Molecules
Question 555. In 1992, representatives from nearly 180 nations, met in
  1.    Rio de Janerio
  2.    Brazil
  3.    USA
  4.    Canada
 Discuss Question
Answer: Option A. -> Rio de Janerio
Answer: (a).Rio de Janerio
Question 556. When did United states ban CFCs usage in spray cans?
  1.    1975
  2.    1978
  3.    1976
  4.    1970
 Discuss Question
Answer: Option B. -> 1978
Answer: (b).1978
Question 557. What does high flying crafts deplete ?
  1.    Atmosphere
  2.    Ozone Layer
  3.    Biosphere
  4.    Hydrosphere
 Discuss Question
Answer: Option B. -> Ozone Layer
Answer: (b).Ozone Layer
Question 558. 'CFCs' stands for
  1.    Hydrocarbons
  2.    Chloroflorocarbons
  3.    Clorine Florine carbons
  4.    Cloroflurine carbons
 Discuss Question
Answer: Option B. -> Chloroflorocarbons
Answer: (b).Chloroflorocarbons
Question 559. What does ozone depleting chemical, HGs, contributing to ?
  1.    Global Warming
  2.    Eutrophication
  3.    Deforestation
  4.    Urbanization
 Discuss Question
Answer: Option A. -> Global Warming
Answer: (a).Global Warming
Question 560. Process involved in converting ultraviolet radiation (UV) into heat, known as
  1.    Inferring process
  2.    Process skill of science
  3.    Chapman process
  4.    Conversion process
 Discuss Question
Answer: Option C. -> Chapman process
Answer: (c).Chapman process

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