chapter 25 test

The air that surrounds earth

Form the nitrogen compounds that plants need

Transfer of nitrogen from the atmosphere to the soil to living organism and back to the atmosphere

Mixture of mineral and rock particles remains of dead organisms water and the air

Features of the environment that are alive or once alive 

occurs when liquid water changes into water vapor

is an areas average weather conditions over time

amount of energy available at each feeding level 

describes how water moves from the surface of earth to the atmosphere and back to earth again

nonliving physical features of the environment.

is the process of changing from a gas to a liquid.

is the production of energy-rich nutrient molecules from chemicals

shows all possible feeding relationships among the organisms in a community

describes how carbon moves between the living and non living world