The peak intensity of radiation from a star named sigma is 2 x 106 nm. in what spectral band is this?
ultraviolet
radio waves
visible light
microwave radiation

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy