Sandy is conducting an investigation to find out which food his dog likes best. Which is the dependent variable
in his investigation?
A. color of dog’s dish
B. amount eaten
C. type of food given

the answer is c because I just got done doing that same exact problem it was really easy

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.