A swampy place or marshy inlet.
The wearing away of the land surface by wind or water.
The downward movement of water in soil.
Sediment deposited in oceans.
The part of the earth’s crust (water and atmosphere) where living organisms
can exist.
An embankment, or ridge, constructed across sloping soils on the contour or
at a slight angle to the contour intercepting surface runoff so that
water soaks into the soil or flows slowly to a prepared outlet.
Organisms that must feed on other organisms in order to get the energy-rich
food they need
Enrichment of water due to fertilization, sewage, effluent or other waters that
carry a high plant-nutrient component which speeds up the ecological aging
of a body of water.
A chemical compound that aids root growth.
A wetland without trees which often has standing water.
The removal of soluble substance from soil by percolating water.
Material deposited in lake water and exposed when the water level is
lowered or the elevation of the land is raised
A planned multi-year succession of crops designed to maximize productivity
and minimize erosion and plant diseases.
The dark organic part of soil formed from decaying plant and animal matter;
often called topsoil.
Referring to or derived from living organisms; in chemistry, any compound
containing carbon.
Organisms that directly use the sun’s energy to make their own food.
Soil material, rock fragments, or both, moved by creep, slide, or local wash
and deposited at the base of steep slopes.
The degree to which “puddled” or reworked soil can be permanently
deformed without rupturing.