marine bio test

Layers in the ocean changed by salinity

halocline

If the mass of 10 ml. of saltwater is 11.5 what is the density

1.15 g/mL

What is the unit used to measure mass?

grams (g)

What is the unit used to measure volume?

milliliters (mL)

What is the unit used to measure density?

grams per mole (g/mL)

What is the unit used to measure salinity?

parts per thousand (ppt)

If you descend deeper in the ocean, the salinity will

increase

If you are at the surface of the ocean, O₂ will

increase

The lowest point of a wave is the

trough

_____ sends sound waves to the seafloor

sonar

_____ are the periodic rise and fall of the sea

tides

A _____ is caused by a difference in the temperature and salinity of ocean water

density current

The upward motion of ocean water is called

upwelling

The highest point of a wave is the

crest

What is the average temperature of deep water below a thermocline?

~4°C

Which process does NOT remove salt from ocean water?

evaporation of water in subtropical regions

Which type of tides occur when the Sun the Moon and Earth are all in line with one another?

spring tides

Which type of tides occur when the Sun the Moon and the Earth form a right angle?

neap tides

Where in the oceans are the highest values of salinity found? What processes lead to areas of high salinity water?

subtropical regions; high evaporation and low precipitation

Explain why tidal bulges occur simultaneously in opposite sides of the Earth

moons gravity pulls unequally on different parts of the planet

Label the 4 major oceans and the directions of major ocean currents

Pacific, Atlantic, Indian, Southern; clockwise in the Northern Hemisphere and counter-clockwise in the Southern Hemisphere

Identify the deepest ocean and which oceans are shrinking and widening

Pacific Ocean- shrinking and Atlantic ocean- widening

Describe the major events in the history of oceanography

exploration, mapping, deep-sea exploration and modern research

amount of dissolved salts in a fixed volume of sea water

salinity

transitional layer in which temo rapidly decreases with depth

thermocline