nonliving, physical features of the environment, including air, water, sunlight, soil, temperature, and climate
coal, oil, natural gas, and other fuels that are ancient remains of plants and animals. Hydrocarbon
process by which plants use the sun's energy to convert water and carbon dioxide into sugars
biogeochemical cycle that describes transformation of these compounds in nature CaCO3, CO2, HCO3−, CH4, R-CH3
biogeochemical cycle that describes the transformation of these compounds in nature N2, NH4+, NH3, NO2-, NO3, R-NH2
notation that shows what elements a compound contains and the ratio of atoms or ions in the compound
A pathway by which a chemical elements moves through both living and non-living components of an ecosystem
CO2, colorless, odorless gas, produced by burning carbon and organic compounds and by respiration and absorbed by plants in photosynthesis.
CH2O, common names sugar and starches. Form of chemical energy for cells, broken down into glucose
NH3, A colorless gas with a characteristic pungent smell. It dissolves in water to form a strong base solution.