unit 5 test - oceans and atmosphere
8. how do temperatures change as altitude increases within the troposphere?
a temperatures increase
b temperatures decrease
c. temperatures remain constant
d. temperatures fluctuate randomly
9. from which geographic regions do cold ocean currents generally originate?
a. polar regions
b. equatorial regions
c temperate zones
d. oceanic ridges
10 what specific earth motion causes ocean currents in the northern hemisphere to curve
in a clockwise pattern?
a. earths revolution around the sun
b. earths tilt on its axis
c. earths spinning on its axis
d. earths wobble
11. which layer of earths atmosphere spans the greatest vertical distance?
a. troposphere
b stratosphere
c mesosphere
d. thermosphere
12 how does the coriolis effect influence water movement in the southern hemisphere?
a. it causes clockwise movement
b. it causes counterclockwise movement
c. it prevents any circular movement
d. it has no effect on water movement
13 commercial airplanes typically fly in which layer(s) of the atmosphere?
a. troposphere only
b. stratosphere only
c. both troposphere and stratosphere
d. mesosphere
14. which layer of earths atmosphere is where weather phenomena such as tornados and
hurricanes primarily occur?
a. stratosphere
b troposphere
c. mesosphere
d. thermosphere

Question

Accepted Answer

### 8.
# Brief Explanations:
In the troposphere, as altitude increases, temperature decreases. This is because the troposphere gets most of its heat from the Earth's surface (through processes like conduction, convection, and radiation from the ground). As you go up in the troposphere, you move away from this heat source.
# Answer:
C. Temperatures decrease

### 9.
# Brief Explanations:
Cold ocean currents generally originate from polar regions. Polar regions are cold, and the water there is cooled. Cold - water is denser, and through processes like thermohaline circulation (driven by differences in temperature and salinity), cold water from polar regions can flow towards lower latitudes.
# Answer:
A. Polar regions

### 10.
# Brief Explanations:
The Coriolis effect, which is caused by Earth's spinning on its axis, makes ocean currents in the Northern Hemisphere curve in a clockwise pattern. The Coriolis force acts perpendicular to the direction of motion of a moving object (in this case, water in ocean currents) and its magnitude depends on the latitude and the velocity of the object.
# Answer:
C. Earth's spinning on its axis

### 11.
# Brief Explanations:
The thermosphere spans the greatest vertical distance. The thermosphere extends from about 80 - 800 km (or more) above the Earth's surface. In contrast, the troposphere is about 8 - 15 km thick (depending on latitude), the stratosphere is about 15 - 50 km thick, and the mesosphere is about 50 - 80 km thick.
# Answer:
D. Thermosphere

### 12.
# Brief Explanations:
The Coriolis Effect causes clockwise movement of water (and air) in the southern hemisphere. The Coriolis force is to the left of the direction of motion in the southern hemisphere (opposite to the northern hemisphere where it is to the right), resulting in a clockwise circulation pattern for large - scale water (and air) movements.
# Answer:
A. It causes clockwise movement

### 13.
# Brief Explanations:
Commercial airplanes typically fly in the stratosphere. The stratosphere has stable air (due to the temperature inversion - temperature increases with altitude in the stratosphere because of the ozone layer absorbing ultraviolet radiation), which means less turbulence compared to the troposphere.
# Answer:
B. Stratosphere only

### 14.
# Brief Explanations:
Weather phenomena such as tornadoes and hurricanes primarily occur in the troposphere. The troposphere is where most of the Earth's weather occurs because it contains most of the atmosphere's water vapor (which is essential for cloud formation and precipitation) and has convection currents (vertical movement of air) that drive weather systems.
# Answer:
B. Troposphere

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Question

Explanation:

8.

Answer:

9.