Answer to Question 1ANS: C
The water masses present in temperate and tropical waters are named for their relative positions in the
water column. These water masses are surface water, central water, intermediate, deep water, and
bottom water. Information can be found in the section Thermohaline Circulation Affects All the
Ocean's Water.
Answer to Question 2ANS: C
Thermohaline currents are dependent on density differences which stem from temperature and salinity
variations. These and surface currents have large impacts on Earth's temperature, climate and
biological activity. Information can be found in the section Mass Flow of Ocean Water Is Driven by
Wind and Gravity.
From space earth shows itself as a planet covered mostly by water.
The Common Pochard - female
Childe Hassam, Boston Common at Twilight
Diseases Common to the Elderly
Most Americans obtain their drinking water from a community water system
Venus with water