Circulation Quizizz

What is density, which describes how compact or spread the substance particles are from each other?

• mass-per-unit volume

• mass-per-unit area

• weight-per-unit mass

• weight-per-unit volume

Seawater is typically denser than freshwater due to seawater’s —

• Greater depth

• Greater volume

• Smaller mass

• Higher salinity

The main source of the salinity of the ocean is

• Chemical weathering of rocks on land which enters the ocean as runoff

• Metamorphism of rocks and sediment in the ocean

• Underwater volcanism

• Waste from marine organisms

What term describes the dissolved substances such as salt in a body of water?

• Thermocline

• Salinity

• Saltiness

• Pycnocline

The higher the salt content in the ocean the ________ dense the water will be.

• less

• more

• same

If I have freshwater that is less dense, what will it do in comparison to salt water that is more dense?

• The more dense water will float and the less dense water will sink.
• The more dense water will sink and the less dense water will float
• Nothing, they will mix evenly.

The highest salinity would be found in which of the following areas?

• an area with high rates of precipitation
• an area with high rates of evaporation
• an area with plenty of runoff
• all of the above

True or False: The salt that is in your salt shaker is the same salt that is in our oceans; it is NaCl or sodium chloride.

• true

• false

Which of the following is another process that increases the salinity of seawater?

• runoff from land
• icebergs melting
• precipitation
• sea ice formation

Which process can lead to a decrease in the salinity of water?

• runoff from land

• precipitation

• sea ice melting

• all of the above