Question

1 multiple choice 2 points
what primarily causes surface ocean currents?
earthquakes
humans
rain
wind
2 multiple choice 2 points
which force primarily drives the formation of ocean surface currents?
magnetic fields
tides
earths rotation
wind
3 multiple choice 2 points
what term is used to describe all the water on earth, including water vapor in the atmosphere, liquid water on the surface, and groundwater?
biosphere
atmosphere
geosphere
hydrosphere

Explanation:

• For question 1: Surface ocean currents are mainly driven by wind. Wind applies a frictional force on the ocean surface, causing the water to move. Earthquakes mainly cause tsunamis, humans have a relatively minor direct role in causing surface ocean currents compared to wind, and rain does not primarily cause surface ocean currents.
• For question 2: Wind is the primary force driving the formation of ocean surface currents. Magnetic fields have no direct role in surface ocean - current formation. Tides are mainly caused by the gravitational pull of the moon and the sun and are more related to the rise and fall of sea levels rather than surface - current formation. Earth's rotation (Coriolis effect) modifies the direction of ocean currents but is not the primary driving force.
• For question 3: The hydrosphere is the term used to describe all the water on Earth, including water vapor in the atmosphere, liquid water on the surface, and groundwater. The biosphere is the global sum of all ecosystems. The atmosphere is the layer of gases surrounding the Earth. The geosphere refers to the solid parts of the Earth.

Answer:

1. Wind
2. Wind
3. Hydrosphere