Reading...
Play button
Play button
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;
18 Cards in this Set
- Front
- Back
|
Water that is nutrient rich is said to be....
|
eutrophic
|
|
|
Water that has few nutrients in it is said to be....
|
oligotrohic
|
|
|
Sources of nutrients in water are....
|
fertilizers
manure |
|
|
Fertilizers and manure contain the nutrients ___ and ___
|
nitrates (nitrogen source) and phophates
|
|
|
Nutrients in water tend to make ____ grow like crazy.
|
phytoplankton
|
|
|
Phytoplankton like to live in which part of the water?
|
surface, sunlit waters
|
|
|
When phytoplankton grow like crazy or "bloom", they prevent ____ from getting deep into the water.
|
light
|
|
|
When light cannot penetrate deep into water, then what happens?
|
plants die
|
|
|
Plants that are growing from the bottom of a pond or stream are called b____ plants.
|
benthic
|
|
|
Oligotrophic waters tend to be ____ (not turbid) and have ____ amount of oxygen and benthic plants growing.
|
clear
high |
|
|
Eutrophic water tends to be ___ (not clear) and have ___ oxygen content.
|
turbid
low |
|
|
Another nutrient, _____, has been banned from detergents but is found abundantly in fertilizer and manure.
|
phosphate
|
|
|
Are there still some nitrates and phosphates remaining in treated waste water as it enters a river?
|
Yes, we don't usually remove all of it.
|
|
|
When water has a lot of ___ in it, fish have trouble finding food and nest sites and the darkened water helps absorb light making it hotter.
|
Sediment
|
|
|
________ causes streams and lakes to get shallower, interfering with navigation and fish migration.
|
Sedimentation
|
|
|
The number 1 water pollutant problem in the Carolinas is....
|
sedimentation
|
|
|
To prevent sedimentation, construction sites are required to...
|
put up silt fences around the site.
|
|
|
Farmers can reduce runoff by...
|
leaving vegetated buffer zones between fields and river.
|
