A cliff is a rock exposure with a near vertical (or is vertical) facing. An escarpment is a long cliff, or steep slope. (causes faulting processes)
Answer:
, 
Explanation:
The total water level lost due to evaporation is directly proportional to the number of day. That is:

Where
is the proportionality constant, which is equal to
. The expression is:

And the total change in water level after 30 days is:


Global water supply is currently a troubling issue. The world's population size is steadily increasing, without the increase in water supply, leaving many to fear an impending shortage.
Freshwater is not evenly distributed across the globe and desalination of water is one solution put forth, but it also comes with its own challenges such as: being very expensive, requiring large amounts of energy, harsh impact on marine life, water being a commodity controlled by large corporations, and emissions having a harsh effect on environments.