Order
Human Impacts
Terms
Sink/Reservoirs
100

The only two steps that lead out of organisms

What is Death and Waste?

100

A Human Impact that is the action of clearing a wide area of trees

What is Deforestation?

100

A step in the cycle that is the action or fact of dying or being killed; the end of the life of a person or organism

What is Death?

100

A Sink/Reservoir that is any of the pieces of hard whitish tissue making up the skeleton in humans and other vertebrates

What is Bone?

200

A step that leads out of almost every step or place in the cycle, which is the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure

What is Runoff?

200

A Human Impact that is waste water and excrement conveyed in sewers

What is Sewage?

200

A step in the cycle that is the act or process of consuming food or resources

What is Consumption

200

A Sink/Reservoir that is any living thing, from single-celled microorganisms to complex animals and plants, that possesses the characteristics of life

What is Living Organisms?

300

The only two steps in the cycle that lead out of Soil

What is Runoff and Uptake?

300

A Human Impact that is the process or industry of obtaining coal or other minerals from a mine

What is Mining?

300

A step in the cycle that is the portion of precipitation (like rain or snowmelt) that flows over the land surface and into streams, rivers, and eventually the ocean, rather than seeping into the soil

What is Runoff?

300

A Sink/Reservoir that is the upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles

What is Soil?

400

The only step in the cycle that leads out of Sediment/Rock

What is Uplift or Rock Cycle?

400

A Human Impact that is a chemical or natural substance added to soil or land to increase its fertility

What is Fertilizer?

400

A step in the cycle that is the process of eroding or being eroded by wind, water, or other natural agents

What is Erosion?

400

A Sink/Reservoir that is a unit of water forming a physiographical feature, for example a sea or an ocean

What are Water Bodies?

500

A place on some of the cycles that is the envelope of gases surrounding the earth or another planet, but it is NOT on the Phosphorus Cycle

What is Atmosphere?

500

A Human Impact that is the accelerated enrichment of a water body with nutrients, particularly nitrogen and phosphorus

What is Artificial Eutrophication?

500

A step in the cycle that is the process by which plants absorb water, nutrients, and other substances from their environment, primarily through their roots

What is Plant Uptake?

500

A Sink/Reservoir that are small, solid particles of mineral, rock, or organic matter that have been transported and deposited by water, wind, or ice

What is Rock Sediment?