many states offer esl as a primary endorsement such as oklahoma english as a second language p 12 connecticut tesol pk 12 and washington d c english as a second language for public school teachers other states that do not offer esl as a primary endorsement offer esl as an add on endorsement
Definition of biohazard. : a biological agent or condition that is a hazard to humans or the environment; also : a hazard posed by such an agent or condition.
A biogeochemical cycle is defined as the movement of elements, like those above, through organisms and the environment. A way to remember this is to break apart the word biogeochemical into pieces. The first part of the word, bio, involves biological organisms, like bacteria, plants and animals.