definitions
Down stream
what is toward the mouth of a stream or river
what is a water path that allows boats to travel places (shortcut) and is more fuel efficient for boats.
the seven ways we use water
what are drinking, bathing, recreation, religion, planting, electricity, and boundaries
1.
oil spills
why should we keep freshwater safe
only 3% of water is freshwater and only 1% is available to provide for the whole world
Gyre
what is a large circular oceanic surface current
what is a canal used for and why is it bad
canals are used to transport materials and they change river flow and destroy habitats
how do rivers affect the land
they can flood it and move over it when they curve. They can also erode land
2.
toxins
the difference between an ocean and freshwater
what is salt
wetlands
what are lowland areas that have plenty of water such as swamps
dam
what is a barrier built across a river
how do humans destroy ocean habitats
soil runs off land, coral reefs get mined, and fish nets drag against the ocean floor
3.
Levees
what is a raised bank on the edge of a river channel
what is a dam used for and why is it bad
its used for electricity and the reservoir is used for farming and industries. Its bad because it changes river flow, affects habitats, and erodes the land (weakens it)
how do oceans affect land
4.
sewage
Delta
what is a plain formed by a deposit of sediment where a river enters a lake or ocean, typically in a triangular shape
what is a river channel used for and why are they bad
they are used to redirect the water for farming and they are bad because they drain the body of water leaving behind salt content
continental shelves
what is the shallow gently sloping submerged zone of a continent next to an ocean
5.
littering