Chelsea holds a B.F.A. from the Maryland Institute, College of Art (2005) and an M.A.T. from Johns Hopkins University (2011.) In addition to cartooning and being a first-time mother, she has worked as an elementary school art teacher.
The concept of primary energy is used in energy statistics in the compilation of energy balances, as well as in the field of energetics. In energetics, a primary energy source refers to the energy forms required by the energy sector to generate the supply of energy carriers used by human society.
Living organisms are able to exist because of a continual input of energy. Part of this energy is used to carry out essential functions- such as maintenance, growth and reproduction- and the remainder is lost in the form of heat. 2. The primary source of energy for most living organisms is the sun.