What do plankton produce?
air we breathe, food for consumers
The size of a wave in the open ocean depends on what?
the strength of the wind blowing across the water's surface
What is number 23?

Abyssal Plain
Name the two benefits of currents?
Movement of ships and animals, weather and climate (warming waters)
The density of seawater is affected by what factors?
Temperature and salinity
Where does our fresh drinking water come from?
What happens to the particle motion of water particles as you travel deeper beneath the ocean's surface?
Water particles move in smaller circles.
What is number 21?

Volcanic Islands
Surface currents affect what?
Climate
Surface water temperature varies depending on what? (two things)
sunlight received and the latitude
Sunlight causes ocean water to become clouds by what process?
Evaporation
What are the three things that determine how tall a wave is?
Wind speed, direction, and fetch
What is number 22
Mid ocean ridge
Gyres south of the equator move in what direction?
Counterclockwise
The area where the water temperature drops drastically is known as what?
Thermocline
Name the three problems impacting our oceans
Overfishing, ocean acidification, climate change
What happens to a wave’s height as it approaches shore? (2 things)
Wave height increases and wavelength decreases
What is number 19

Continental shelf
The large system of rotating ocean currents is called what?
Gyres
Warm water ___(rises/sinks) and colder water ____(rises/sinks)
rises, sinks
The problem where coral are not able to rebuild their skeleton is a result of what? (2 of them)
increase in carbon dioxide and a decrease in pH levels
What is the difference between wave and tide?
A wave is generated by the wind the tides by the moon
What is number 24
Sea mount
Where do colder, denser currents move from?
The poles
What does upwelling bring to the surface?
Dissolved nutrients