The colors on an oil slick are caused by reflection and (explain why)
a. diffraction
b. interference
c. refraction
d. polarization
e. ionization

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next

In an experiment, how can i change human errors? be specific.