Oceanography - intro

What percent of the Earth’s surface is covered in oceans?

70.8

oceans are Earth’s _________ habitat

largest

__% of water is in oceans

97

where is the rest of water on Earth?

Groundwater > Ice & Snow > Lakes > Atmosphere > Swamps > Rivers > Biological Water

Biggest and deepest ocean

Pacific

Most dominant ocean in atmospheric conditions

Atlantic

Warmest ocean

Indian

Smallest and shallowest ocean

Arctic

“Newest” (described) ocean

Southern

list the oceans from largest to smallest

Pacific > Atlantic > Indian > Arctic > Southern

global ocean

there is only one world ocean

the Pacific is the world’s largest ____________ feature

geographic

the Atlantic plays a crucial role in global ________ and ______

climate and trade

where is the largest mountain range on Earth

the Atlantic (mid-Atlantic ridge)

why is the Indian ocean less productive?

it’s warmer — increased temperature decreases biomass

how thick is the sea ice in the Arctic?

up to a few meters

what is another name for the Southern ocean?

Antarctic

what makes seas different than oceans?

smaller, shallower, saltier; usually enclosed by land and directly connected to an ocean

we used to think there were seven seas, now we know that there are way more than ____ seas, bays, etc

100

Ancient 7 seas (Greek)

Adriatic

Arabian

Black

Caspian

Mediterranean

Persian

Red

Deepest ocean

Mariana Trench

the average ocean depth is ______ meters, while the average continental elevation is ___

3,682 vs 840

the deepest ocean trench is ________ meters, and the highest mountain is ______

11,022 vs 8,850