Ecology

The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.

The regions of the surface and atmosphere of the earth or another planet occupied by living organisms.

All the waters on the earth’s surface, such as lakes and seas, and sometimes including water over the earth’s surface, such as clouds.

The rigid outer part of the earth, consisting of the crust and upper mantle.

The envelope of gases surrounding the earth or another planet.

A biological community of interacting organisms and their physical environment.

A globe representing the earth.

The interruption of a settled and peaceful condition.

The action of clearing a wide area of trees.

A gradual process of movement and transport of the upper layer of soil (topsoil) by different agents – particularly water, wind, and mass movement – causing its deterioration in the long term.

A heavy colorless gas that is formed by burning fuels, by the breakdown or burning of animal and plant matter, and by the act of breathing and that is absorbed from the air by plants in photosynthesis.

A large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra.

The weather conditions prevailing in an area in general or over a long period.

The nature and relative arrangement of places and physical features.

The amount of precipitation that we expect per year

The angular distance of a place north or south of the earth’s equator, or of the equator of a celestial object, usually expressed in degrees and minutes.

The height of an object or point in relation to sea level or ground level.

A group of people living in the same place or having a particular characteristic in common.

A microscopic organism, especially a bacterium, virus, or fungus.

Relating to water.

On or relating to the earth.

Large algae growing in the sea or on rocks below the high-water mark.

An organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.

An animal that feeds on carrion, dead plant material, or refuse.