ENVIRSC 1G03 Chapter Notes - Chapter 1-3: Pedosphere, Hydrosphere, Cryosphere
Thin, blue region along the edge of earth. Mixture of gas molecules, small solid and liquid suspended particles, and falling precipitation. It includes: gaseous part of earth from its surface to the exosphere. The liquid realm of the earth, both fresh, salt, and frozen water, including snow and ice. Frozen part of hydrosphere sometimes treated separately as cryosphere. Includes all of the rock and geologic material making up the planet. Also includes the soil, which sometimes treated separately as pedosphere. The landforms of the lithosphere provide habitats for living organisms and the layer of soil is a source of nutrients. Encompasses all life on earth, such as plants, animals, and humans. Environmental science: the study of how the natural world works, how humans affect their environment, and how the environment affects humans in return. Relationship between variables is studied by manipulating one variable and measuring the response of the other.