Many functions in the body are controlled by special compounds. Which statements about these compounds do you think are true? Ch
eck all that apply. The body can make all of the compounds it needs. The body gets energy from some compounds. Some compounds determine physical characteristics.
Answer the Air Pollution From a Power Plant photograph. Tell students that pollutants emitted into the atmosphere do not stay in the atmosphere or even directly above the polluting source forever. They move throughout the atmosphere and are moved and removed by natural processes.
