Atmospheric unit test

1. What is the standard atmospheric pressure at sea level?

a) 101.3 kPa
b) 760 mmHg
c) 29.92 inHg
d) All of the above

2. What is the composition of Earth's atmosphere?
a) Nitrogen
b) Oxygen
c) Argon
d) All of the above

3. What causes atmospheric pressure to decrease with increasing altitude?
a) Decrease in temperature
b) Decrease in air density
c) Increase in humidity
d) All of the above

4. What is the unit typically used to measure atmospheric pressure?
a) Kilopascals (kPa)
b) Millimeters of mercury (mmHg)
c) Inches of mercury (inHg)
d) All of the above

5. How does atmospheric pressure affect weather patterns?
a) High pressure systems bring clear skies and calm weather
b) Low pressure systems bring stormy weather and precipitation
c) Pressure differences create wind patterns
d) All of the above

6. What is the relationship between temperature and pressure in the atmosphere?
a) As temperature increases, pressure decreases
b) As temperature decreases, pressure decreases
c) As temperature increases, pressure increases
d) As temperature decreases, pressure increases

7. What is the role of the ozone layer in the atmosphere?
a) Absorbs harmful UV rays from the sun
b) Regulates temperature
c) Filters out pollutants
d) All of the above

8. What is the average lapse rate of temperature in the atmosphere?
a) 6.5°C per kilometer
b) 10°C per kilometer
c) 2.5°C per kilometer
d) 15°C per kilometer

9. How does humidity affect atmospheric pressure?
a) High humidity leads to lower pressure
b) Low humidity leads to higher pressure
c) Humidity has no effect on pressure
d) Humidity leads to an increase in pressure

10. What is the significance of the troposphere in the atmosphere?
a) Where weather occurs
b) Where most atmospheric processes take place
c) Where temperature decreases with altitude
d) All of the above

Answers:
1. d) All of the above
2. d) All of the above
3. b) Decrease in air density
4. d) All of the above
5. d) All of the above
6. c) As temperature increases, pressure increases
7. a) Absorbs harmful UV rays from the sun
8. a) 6.5°C per kilometer
9. a) High humidity leads to lower pressure
10. d) All of the above