Which gas giants have a ring system? select all that apply. a. saturn b. jupiter c. uranus d. neptune

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?