Question

earths atmosphere and ocean currents assessment

1. which atmospheric layer contains the majority of earths carbon dioxide, water vapor, air pollution, clouds, and organisms?

a. stratosphere
b. troposphere
c. mesosphere
d. thermosphere

1. what is the primary energy source that heats earths oceans?

a. geothermal energy
b. solar radiation
c. tidal forces
d. wind energy

1. what term describes the blanket of air surrounding earth?

a. hydrosphere
b. biosphere
c. atmosphere
d. lithosphere

1. in which atmospheric layer would you most likely find a weather balloon?

a. stratosphere
b. troposphere
c. mesosphere
d. thermosphere

1. in which direction do ocean currents transport warm water from the equator?

a. toward earths core
b. toward the poles
c. only eastward
d. only westward

1. which atmospheric layer is closest to earths surface?

a. stratosphere
b. mesosphere
c. troposphere
d. thermosphere

1. what is the name of the atmospheric layer directly above the troposphere?

a. mesosphere
b. thermosphere

Explanation:

• Question 1: The troposphere is the lowest layer of the atmosphere where weather phenomena (like clouds), pollutants, water vapor, carbon dioxide, and most organisms (as life exists near the Earth's surface) are present.
• Question 2: Solar radiation is the main source of heat for the Earth's oceans. Geothermal energy is from the Earth's interior and has a much smaller impact on ocean heating compared to solar radiation. Tidal forces are related to the gravitational pull of the moon and sun on the Earth's tides, not ocean heating. Wind energy is a result of solar - heated air movement.
• Question 3: The atmosphere is the blanket of air surrounding the Earth. The hydrosphere is all the water on Earth, the biosphere is the regions of life on Earth, and the lithosphere is the rigid outer part of the Earth.
• Question 4: Weather balloons are typically sent up into the stratosphere. The troposphere is where most weather occurs, but balloons are often sent above the troposphere (into the stratosphere) to get more accurate long - term weather data. The mesosphere and thermosphere are much higher and not the typical layers for weather balloons.
• Question 5: Ocean currents transport warm water from the equator toward the poles. There is no such restriction as only eastward or westward, and moving toward the Earth's core is not relevant as ocean currents are on the Earth's surface.
• Question 6: The troposphere is the closest atmospheric layer to the Earth's surface.
• Question 7: The stratosphere is the layer directly above the troposphere. The mesosphere is above the stratosphere.

Answer:

1. B. Troposphere
2. B. Solar radiation
3. C. Atmosphere
4. A. Stratosphere
5. B. Toward the poles
6. C. Troposphere
7. B. Stratosphere