Which of these is a freshwater reservoir?
A. Gulf of Mexico
B. Pacific Ocean
C. Atlantic tidal basin
D. Antarctic polar ice
Which contributes most in supporting life on the deep ocean floor?
A. cold water temperatures
B. extreme water pressure
C. hydrothermal vents
D. lack of predators
Which TWO statements are true about the changing salt concentrations of ocean water?
1. When Earth's ice increases, ocean water gets more salty
2. When Earth's ice increases, ocean water gets less salty
3. When water evaporates from the oceans, the remaining water becomes more salty
4. When water evaporates from the oceans, the remaining water becomes less salty
A. Statements 1 & 3
B. Statements 1 & 4
C. Statements 2 & 3
D. Statements 2 & 4
Which of the following contains most of the water on earth?
A)the oceans
B)watersheds
C)the atmosphere
D)ice and aquifers
Which water reservoir contains frozen fresh water?
a Rivers
b Glaciers
c Lakes
d Oceans
Which best explains how nutrients, salt, sediment and pollutants get into estuaries and oceans?
A. from rivers and streams flowing into estuaries and oceans
B. from organisms living and dying in estuaries and oceans
C. from asteroids and comets impacting Earth at estuaries and oceans
D. from precipitation falling over the estuaries and oceans