Week 6 - Dams & Dredging Flashcards
1
Q
What is a dam?
A
A dam is a big space that holds water to help prevent flooding. There are big gates that are controles and it releses the water at certain times
2
Q
What are 3 economic impacts of damming? (Positive + Negitive)
A
- Costs lots of money
for the gates and
other equipment - They store water so
famers can water their
crops - They can make
electricity through
flowing water
3
Q
What are 3 environmental impacts of damming? (Positive + Negitive)
A
- Changes animals
habitats - They help prevent
flooding - Changes the way that
rivers flow
4
Q
What are 3 social impacts of damming? (Positive + Negitive)
A
- People can go fishing
or boating in the lakes
dams create - Is an attraction for
tourists - People may have to
relocate
5
Q
What is dredging?
A
Dreding is the removal of sand, dirt and sediment from the bottom of an ocean, creek or a big space of water with those 3 things in it.
6
Q
What are 3 economic impacts of dredging? (Positive + Negitive)
A
- Costs a lot of money
(machinery) - More people will get
jobs - Helps avoid flooding
which saves propeties
and money
7
Q
What are 3 environmental impacts of dredging? (Positive + Negitive)
A
- Creates more land
- Effects marine life and
their habitats - Avoids bottlenecks
8
Q
A
