Ocean Formation And Properties Question Preview (ID: 49912)


How The Ocean Formed, Salinity, Pressure, Temperature. TEACHERS: click here for quick copy question ID numbers.

How salty is the ocean?
a) 3.5 percent
b) 5 percent
c) 27 percent
d) 42 percent

Where would ocean water be saltier
a) where rivers carrying dissolve minerals enter
b) where more rain falls in the ocean
c) where glaciers are melting
d) where more heat is causing more evaporation

Early Earth had no oceans partially because it was too
a) hot
b) dry
c) frozen
d) small

Beside outgassing from volcanoes, where else did Earth's water come from?
a) solar winds
b) comets and asteroids
c) condensation
d) gravitation

The ocean and atmosphere exchange gases such as ____ which enters the atmosphere due to evaporation.
a) carbon dioxide
b) oxygen
c) water vapor
d) nitrogen gas

Oceans absorb gases such as ______ from the atmosphere, which helps to control global warming.
a) carbon dioxide
b) oxygen
c) water vapor
d) nitrogen gas

Coastal areas have a milder climate than inland because
a) precipitation cools the coastal areas
b) water is both cohesive and adhesive
c) inland there is less rain
d) ocean water has a high specific heat

Why is there greater pressure as you go deeper in the ocean?
a) because it becomes darker
b) because the temperature becomes colder
c) because more water is piled on top of you
d) because there are stronger ocean currents

Dissolved minerals from rocks have caused the oceans to be
a) turbulent
b) salty
c) very large
d) cloudy

What is the release of gas that was trapped in some material such as magma?
a) evaporation
b) condensation
c) outgassing
d) water vapor

What is a process that removes salt from ocean water?
a) the break down of rocks and dissolving of minerals
b) evaporation of water
c) salt ions being used by aquatic organisms to make shells
d) the melting of polar ice and icebergs

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