Hydrosphere & Atmosphere Summative Assessment

Seawater density is influenced by two main factors:

• Salinity, temperature

• Density current, surface current

• Density, temperature

• Pycnocline, thermocline

Which term refers to the layer of water in which there is a rapid change of TEMPERATURE with ocean depth?

• Thermocline

• Abyssal Zone

• Pycnocline

• Deep Zone

Huge circular-moving current systems on the surfaces of oceans are called ______________.

• Eddies

• gyres

• surface currents

• longshore currents

Tags

NGSS.MS-ESS2-6

One major source of elements in seawater is ______________.

• Volcanic eruptions

• Formation of sea ice

• Melting icebergs

• Evaporation

What causes ocean surface currents?

• gravity

• friction between the ocean and wind on its surface

• ocean movements associated with earthquakes

• changes in ocean water density

Tags

NGSS.MS-ESS2-6

The water cycle is the ______________.

• Distribution of drinking water on Earth.

• Unending circulation of Earth's water supply.

• The recycling of water after industrial use.

• The evaporation of water from Earth's surface.

Tags

NGSS.MS-ESS2-4

What is one way that ocean currents can affect the climate of an area?

• making ocean water evaporate.

• changing the density of water in the tropics.

• transferring heat from the polar regions to the tropics.

• transferring heat and cold between the tropics and polar regions.

Tags

NGSS.MS-ESS2-6

What is the importance of upwelling?

• It brings deep cold water and nutrients to the surface.

• It brings warm water from the tropics to the poles.

• It helps warm the North Atlantic gyre.

• It decreases winds along exposed coastlines.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Which is NOT a zone in the three-layered structure of the ocean according to density?

• surface mixed zone

• transition zone

• deep zone

• intertidal zone

What percentage of Earth's surface is covered by the oceans?

• 52%

• 87%

• 38%

• 71%