A canal or ditch that is used to carry water from one location to another.

Gray water.

The process of boiling water and then condenses the salt-free water vapor.

What is most of the water in the United States used for?
Agriculture.

A reservoir.

The middle east.

(a) Distillation uses heat to convert pure water into steam that is later condensed, leaving the salt behind.

(b) Reverse osmosis is a process of desalination in which water is forced through a thin semi permeable membrane at high pressure.

Pro: Provide power / prevent floods
Con: Ruin harvests for farmers

When floodwaters become too high, levees can either collapse due to the tremendous pressure of the water, or water can come over the top and quickly erode a large hole in the levee.

a) Levees may prevent flooding at one location, but by doing so they force floodwater farther downstream where it can cause even worse flooding.

b) The fertility of surrounding lands is reduced because natural floodwaters no longer add fertility to floodplains by depositing sediments there.

Flooding occurs when water input exceeds the ability of an area to absorb that water.

Levees are an enlarged bank built up on each side of the river to prevent flooding.

Dike: are enlarged banks built up to prevent ocean waters from flooding adjacent land built along rivers to prevent rising rivers from spilling over onto the floodplain whereas dikes are built near the ocean to prevent ocean waters from flooding the adjacent land.

Dam: a barrier that runs across a river or stream to control the flow of water, used for multiple purposes.

Aqueduct: canals or ditches used to carry water from one location to another.

Distillation:
Is a process of desalination in which water is boiled and the resulting steam is captured and condensed to yield pure water.

Reverse osmosis:
A process of desalination in which water is forced through a thin semipermeable membrane at high pressure.

North Africa and the Middle East

1. Seawater flows into chamber
2. Pressure is applied to the water
3. Under pressure, water is pushed through a semipermeable membrane but salty is not
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4. Salt-free water flows out of the chamber
5. Brine (very salty water) flows out of the chamber

Levees are built along rivers to prevent rising rivers from spilling over onto the floodplain whereas dikes are built near the ocean to prevent ocean waters from flooding the adjacent land.

1. Seawater flows into the desalination chamber
2. Heating element boils water, creating steam
3. Cool seawater in condensing coil causes steam to condense
4. Salt-free water flows out of chamber
5. Brine (very salty water) flows out of chamber

Problem:
1) Dams cause an interruption of the natural flow of water to which many organisms are adapted. For migrating fish such as salmon, dams are an obstacle for breeding.
2) Dams can cause harvests to fail as they lack the flood water which contains the vital building blocks of life.

Structure:
Fish ladders - A stair-like structure that allows migrating fish to get around a dam.

*Answer can vary*
1) The human population would’ve taken a longer time to advance technologically
2) Civilizations would have taken a longer time to build without the efficiency of aqueducts
3)With aqueducts, not having rain isn’t an issue

Yes
i.e:
1) India, Bangladesh, China example - government gets involved:
At the same time that India is diverting water that would naturally flow into Bangladesh, neighboring China has begun the construction of dams on the Yarlung-Zangbo River, which flows from China into India, but there is concern that the water behind the dams would later be diverted to agricultural use in China, which could result in substantially less water flowing through India and Bangladesh.

2) The Soviet Union diverted two rivers that fed the Aral Sea in Central Asia:
When the Soviet Union diverted two rivers that fed the Aral Sea in Central Asia. Diversion of the rivers dramatically decreased freshwater input into the Aral Sea, increased the salinity of the remaining lake water, and destroyed the local fish populations.