Water cycle
What is the driving force of the water cycle?
The sun
How much of the earth is made of water?
71%
What is the deepest part of the ocean?
A deep ocean trench, specifically the Mariana Trench
waves are MAINLY caused by
winds
True or false: there is less water on the planet now than there was 1,000 years ago
False: the amount of water on earth does not change!
The sun plays the most DIRECT role in which part of the water cycle
Evaporation
What percentage of the earth is freshwater?
3%
What is the smooth, nearly flat region of the ocean floor called?
Abyssal plain
As the depth of the ocean water increases, the temperature _________
decreases
What is an aquifer?
A source of underground water
The term used to describe rainwater (or melted snow) flowing into river and streams and running down the land
run-off
What percentage of the earth is salt water?
97%
steep incline of the ocean floor on the edge of the continental shelf
continental slope
Deep ocean currents are generated MOSTLY by
Temperature and salinity
gradually sloping shallow area that extends outward from the edge of a continent
Continental shelf
The process in which water moves underground is known as
infiltration
Where is most of the freshwater on earth stored?
Trapped in glaciers
What is the difference between a seamount and a volcanic island?
A volcanic island reaches above the surface of the water, and seamount does not
What is the name of the lowest part of a wave?
The trough
Name the 5 major oceans on earth
Atlantic, pacific, arctic, indian, southern
The process in which water moves through plants and back into the atmosphere
Transpiration
True or false: water is a limited resource.
True: because freshwater is is scarce on earth and much of it is not accessible
This part of the ocean floor is created by a divergent plate boundary, and it is where new oceanic crust is formed
Mid-ocean ridge
in order to INCREASE salinity, there must be _________ water evaporating than precipitating
More
What is the name of the ocean current that goes across the atlantic ocean and is the reason why western europe has a more mild climate?
The Gulf Stream