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MCQs

Total Questions : 96 | Page 1 of 10 pages
Question 1. How much cooler does the air get for every 1 km increase in altitude in the troposphere?
  1.    2 degrees
  2.    6.5 degrees
  3.    8 degrees
  4.    10 degrees
 Discuss Question
Answer: Option B. -> 6.5 degrees
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. Which of the following is produced when electrical discharges pass through oxygen in the air?
  1.    chlorofluorocarbons
  2.    methane
  3.    ozone
  4.    lead compounds
 Discuss Question
Answer: Option C. -> ozone
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. What is the source of lead compounds?
  1.    aerosol sprays foams
  2.    exhaust fumes of motor vehicles
  3.    incomplete burning of wood
  4.    none of above
 Discuss Question
Answer: Option B. -> exhaust fumes of motor vehicles
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. The atmosphere is divided into how many layers?
  1.    two
  2.    three
  3.    four
  4.    five
 Discuss Question
Answer: Option C. -> four
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. The outer layer of the thermosphere is
  1.    ionosphere
  2.    exosphere
  3.    mesosphere
  4.    stratosphere
 Discuss Question
Answer: Option B. -> exosphere
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. The temperature of the outer mesosphere is
  1.    93 °C
  2.    −93 °C
  3.    5 °C
  4.    −5 °C
 Discuss Question
Answer: Option B. -> −93 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. Minimum temperature of the troposphere is
  1.    17 °C
  2.    −55 °C
  3.    −5 °C
  4.    1800 °C
 Discuss Question
Answer: Option B. -> −55 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. How much higher can be the temperature inside a greenhouse as compared to the outside?
  1.    20 °C higher
  2.    10 °C to 15 °C higher
  3.    5 °C higher
  4.    25 °C higher
 Discuss Question
Answer: Option B. -> 10 °C to 15 °C higher
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. If silk clothes are left in the open air for a week or so, their color fades because of
  1.    sulphur dioxide is converted into sulphur trioxide
  2.    dirt
  3.    carbon monoxide
  4.    nitrogen oxides
 Discuss Question
Answer: Option A. -> sulphur dioxide is converted into sulphur trioxide
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. Height of thermosphere is
  1.    50 Km
  2.    80 Km
  3.    above 80 Km
  4.    30 Km
 Discuss Question
Answer: Option C. -> above 80 Km
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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