// lecture 14

Question 1

ocean

Answer 1

• massive: the mass of the atmosphere equals that of about 10 meters of ocean; 30 ft down the pressure is double the surface pressure. ~4000 m deep.
• dark: absorbs a lot of solar radiation.
• wet evaporates to provide source of moisture for land hydrology.
• absorbs and emits important chemicals, e.g. CO2.

Question 2

density of seawater

Answer 2

depends on salinity and temp.

Question 3

salinity

Answer 3

salt content in parts per thousand.

Question 4

fresh water has its maximum density at

Answer 4

4 C.