ocean zones
earth
salinity
100

Photosynthesizing organisms must live in the ____________ zone.

photic

100

____________ is the sum of the mass of the living organisms in an area

biomass

100

Salt in the oceans comes from

river inflow

200

The deepest point in the ocean is a(n)

 hadal zone

200

 Most energy and nutrients in the oceans are supplied by tiny creatures called ____________.

Phytoplankton

200

Water density decreases as

salinity increases, temperature decreases, pressure decreases

300

The ocean zone that is always covered by water, but is fairly shallow in depth is the

neritic zone

300

Water easily dissolves salts because it is a(n) ____________ molecule.

polar

300

If you add salt to water, the density of the water ____________.

increases

400

Waves, tides and currents move water around in the ____________ zone.

intertidal

400

The reason the Dead Sea has a high salinity

evaporation is very high.

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