Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
irrigation
|
the system to move water to farm lands to give water for crops
|
|
nonpoint source pollution
|
pollution whose source is hard to find or is scattered
|
|
concentration
|
the amount of substance thats in another substance
|
|
aquaculture
|
the science and business of raising and harvesting of fish in a controlled situation
|
|
dam
|
a structure that holds back and controls the flow of water in a river
|
|
septic system
|
a small waste water system used by a home or a business
|
|
sewage system
|
collects and treats huge amounts of waste water from a city or a town
|
|
desalination
|
the process of removing salt form ocean water
|
|
drought
|
a long period of abnormally low rain fall
|
|
lock
|
a section of waterway, closed off by gates, in which ships are raised or lowered by raising or lowering the water level of that section
|
|
point source pollution
|
pollution that enters water from a known source
|
|
ground water
|
water that is absorbed into the ground providing nutrients for plants
|