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Chapter 6: Lessons 1-3

Horizontales
Below the topsoil, contains rock fragments, water, and air, less animal and plant matter than topsoil
A period where less rain than normal falls in an area
The practice of managing the use of resources wisely so the resources last longer.
When the soil becomes less fertile due to growing crops using up the nutrients.
Contamination of Earth’s land, water, or air
The study of the natural processes that occur in the environment and how humans can affect them.
The top layer of dead leaves and grass.
A resource that is either always available or is naturally replaced in a relatively short time.
A widely spread source of pollution that is difficult to link a specific point of origin.
A specific source of pollution that can be identified.
The advance of desert-like conditions into areas that previously were fertile.
Verticales
A product that contains nutrients to help crops grow better.
The process of restoring land to a more productive state.
Resources that are not replaced in a useful time frame.
Anything that occurs naturally in the environment and is used by people.
The amount of land and water that individuals use to meet their resource needs and absorb the waste they produce.
Examples include oil, wind, wood, sun, water, minerals
Means using a resource in ways that maintain the resource at a certain quality for a certain period of time.
Layer that plants absorb water and nutrients.
The process by which water, wind or ice moves particles of rocks or soil
The rock that makes up the earth’s crust.