Major ecological community (tropical rain forest, grassland or desert).
A chart commonly used to graphically display both annual temperature (highs, lows, and averages) and precipitation information for a city or region.
The complex of a community of organisms and its environment functioning as an ecological unit.
A nonliving factor or element (e.g., light, water, heat, rock, energy, mineral)
An environmental factor related to or produced by living organisms.