Marine Science

Marine Science Ch 2

Multiple Select

The world ocean is split into which 4 basins?

• Pacific

• Atlantic

• Mediterranean

• Indian

• Arctic

Multiple Choice

How old is earth?

• 4.5 million years old

• 4.5 thousand years old

• 4.5 trillion years old

• 4.5 billion years old

Multiple Choice

The earth is the perfect distance from the sun so that most water can stay in the __________ form

• solid

• liquid

• gas

Multiple Choice

Earths core, the inner most layer, is .....

• solid

• liquid

• gas

Multiple Choice

The section that includes Earths Crusts is called

• lithosphere

• asthenosphere

• microsphere

• atmosphere

Multiple Choice

How many types of crust are there?

• 1

• 2

• 3

• 4

Multiple Choice

Which is more dense?

• continental crust

• oceanic crust

Multiple Choice

The theory that explains Earths plates are constantly moving was proposed by who?

• Charles Darwin

• Aldo Leopold

• Alfred Wegner

• Plato

• Aristotle

Multiple Choice

What causes the plates to move?

• Earths gravity

• lunar gravity

• convection currents

• heat from the sun

Multiple Choice

Mid-oceanic ridges are

• chain of marine volcanic mountains

• giant gaps between plates

• hydrothermal vents

Multiple Choice

The crust by these mid-oceanic ridges is __________ than the rock farther towards the middle of the oceanic plate

• younger

• older

Multiple Choice

Earths magnetic field reverses every so often

• true

• false

Multiple Choice

About how long ago was Pangaea a supercontinent?

• 4 billion years

• 4 million years

• 250 million years

• 250 billion years

Multiple Select

Pangaea was split into which two large continents?

• Laurasia

• Gondwana

• Panthalassa

• Eurasia

Multiple Choice

The Atlantic ocean continues to grow and the Pacific ocean continues to shrink

• true

• false

Multiple Choice

It is possible to tell water temperatures from the biogenous sediments

• true

• false

Multiple Choice

which would have the most biodiversity?

• continental shelf

• continental slope

• continental rise

• abyssal plane

Multiple Choice

Water can carry and move sediments

• Yes

• No

Multiple Choice

passive means

• very active

• inactive

Multiple Choice

the west cost of the US has

• passive margins

• active margins

Multiple Choice

Which ocean is on the East Coast of the US?

• Pacific

• Atlantic

• Arctic

• Indian

Multiple Choice

Which ocean is on the East Coast of the US?

• Pacific

• Atlantic

• Arctic

• Indian