Chapter 6: Environmental Chemistry I Atmosphere Chemistry Mcqs for High School - Grade 10 - Set 1

1)   How much cooler does the air get for every 1 km increase in altitude in the troposphere?

a. 2 degrees
b. 6.5 degrees
c. 8 degrees
d. 10 degrees
Answer  Explanation 

ANSWER: 6.5 degrees

Explanation:
No explanation is available for this question!


2)   Which of the following is produced when electrical discharges pass through oxygen in the air?

a. chlorofluorocarbons
b. methane
c. ozone
d. lead compounds
Answer  Explanation 

ANSWER: ozone

Explanation:
No explanation is available for this question!


3)   What is the source of lead compounds?

a. aerosol sprays foams
b. exhaust fumes of motor vehicles
c. incomplete burning of wood
d. none of above
Answer  Explanation 

ANSWER: exhaust fumes of motor vehicles

Explanation:
No explanation is available for this question!


4)   The atmosphere is divided into how many layers?

a. two
b. three
c. four
d. five
Answer  Explanation 

ANSWER: four

Explanation:
No explanation is available for this question!


5)   How much higher can be the temperature inside a greenhouse as compared to the outside?

a. 20 °C higher
b. 10 °C to 15 °C higher
c. 5 °C higher
d. 25 °C higher
Answer  Explanation 

ANSWER: 10 °C to 15 °C higher

Explanation:
No explanation is available for this question!


6)   The outer layer of the thermosphere is

a. ionosphere
b. exosphere
c. mesosphere
d. stratosphere
Answer  Explanation 

ANSWER: exosphere

Explanation:
No explanation is available for this question!


7)   Minimum temperature of the troposphere is

a. 17 °C
b. −55 °C
c. −5 °C
d. 1800 °C
Answer  Explanation 

ANSWER: −55 °C

Explanation:
No explanation is available for this question!


8)   The temperature of the outer mesosphere is

a. 93 °C
b. −93 °C
c. 5 °C
d. −5 °C
Answer  Explanation 

ANSWER: −93 °C

Explanation:
No explanation is available for this question!


9)   If silk clothes are left in the open air for a week or so, their color fades because of

a. sulphur dioxide is converted into sulphur trioxide
b. dirt
c. carbon monoxide
d. nitrogen oxides
Answer  Explanation 

ANSWER: sulphur dioxide is converted into sulphur trioxide

Explanation:
No explanation is available for this question!


10)   Height of thermosphere is

a. 50 Km
b. 80 Km
c. above 80 Km
d. 30 Km
Answer  Explanation 

ANSWER: above 80 Km

Explanation:
No explanation is available for this question!