Week 1 Quiz
Part 1 of 4 - Reading and Lesson 45.0/ 45.0 Points
Question 1 of 31
3.0/ 3.0 Points
The injection of dust and sulfur dioxide by volcanoes into this layer generally causes global
temperatures to decline by 0.1oC and 0.2oC for upwards to a year?
A.
thermosphere
B.
stratosphere
C.
mesosphere
D.
troposphere
Question 2 of 31
3.0/ 3.0 Points
What is the global mean sea level pressure?
A. 945 mb
B. 966 mb
C. 1013 mb
D. 1020 mb
Question 3 of 31
3.0/ 3.0 Points
,Week 1 Quiz
In what layer of the atmosphere are noctilucent clouds sometimes observed?
A. thermosphere
B. troposphere
C. stratosphere
D. mesosphere
Question 4 of 31
3.0/ 3.0 Points
Which of these gases is a primary gas?
A. argon
B. helium
C. methane
D. oxygen
Question 5 of 31
3.0/ 3.0 Points
Which form of heat transfer describes the movement of air as a result of differences in density?
A. conduction
B. convection
C. radiation
D. greenhouse
Question 6 of 31
3.0/ 3.0 Points
Which gas is most abundant in the atmosphere?
A. argon
,Week 1 Quiz
B. helium
C. nitrogen
D. oxygen
Question 7 of 31
3.0/ 3.0 Points
Nearly 80% of the mass of the atmosphere is contained in what layer?
A. thermosphere
B. mesosphere
C. troposphere
D. stratosphere
Question 8 of 31
3.0/ 3.0 Points
The ozone "hole" forms during which season over the Antarctic?
A. winter
B. spring
C. summer
D. fall
Question 9 of 31
3.0/ 3.0 Points
Which pH reading of rain or snow is most acidic?
A. 3
B. 6
, Week 1 Quiz
C. 8
D. 11
Question 10 of 31
3.0/ 3.0 Points
In what layer does temperatures rise to more than 1000K because of absorption of extreme ultraviolet
radiation?
A. mesosphere
B. thermosphere
C. stratosphere
D. troposphere
Question 11 of 31
3.0/ 3.0 Points
What is the primary source of anthropogenic carbon dioxide?
A. agricultural practices
B. fossil fuels
C. photochemical reactions
D. phytoplankton photosynthesis
Question 12 of 31
3.0/ 3.0 Points
In which layer of the atmosphere has scientists observed an increase in ozone?
A. troposphere
B. mesosphere
C. stratosphere