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Natural Resources

Horizontales
A combustible black or dark brown rock consisting mainly of carbonized plant matter, found mainly in underground deposits, and widely used as fuel.
The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.
Natural movement of the air.
A colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of fluids of living organisms.
The gradual destruction of something.
The ability to be maintained at a certain rate or level.
The sun’s rays as a source of energy from which power for domestic or industrial use may be generated.
The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
A solid inorganic substance of natural occurrence.
A large area covered with trees and undergrowth.
Verticales
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.
The variety of life in the world or in a particular habitat or ecosystem.
Prevention of wasteful use of a resource.
A viscous liquid derived from petroleum, especially for use as a fuel or lubricant.
A source of energy that is not depleted by use, such as water, wind, or solar power.
The generation of electricity using flowing water.
A source of energy this is depleted by use.
A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms
Flammable gas, consisting largely of methane and other hydrocarbons, occurring naturally underground (often in association with petroleum) and used as fuel.
Relating to or produced by the internal heat of the earth.