What would happen to a river delta if damming reduced the amount of sediment in the river?
a) Nothing much would change because the water flows through the delta.
b) The delta would stop growing.
c) River water quality would improve.
d) The delta would continue to grow as long as the river flows.
e) The delta would erode and subside below sea level.
E
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Rust has a tendency to form when iron in contact with water reacts according to the following reaction: 4 Fe + 3 O2 ? 2 Fe2O3 What is happening at the anodic region?
A) Iron is being oxidized. B) Oxygen is being oxidized. C) Oxygen is being reduced. D) Iron is being reduced. E) none of the above
Second to petroleum and natural gas, the most profitable physical resource recovered from the marine environment is ____
A) precious metals B) diamonds C) sand and gravel D) coal
What percentage of the earth's surface is covered by water?
A. 23% B. 42% C. 50% D. 71% E. 80%
The amount of heat energy required to bring about a change in temperature in a substance is called the
a. ?radiative equilibrium. b. dead heat. c. ?conduction heat. d. latent heat. e. ?heat capacity.