Two objects of the same mass are in a room. At which of the following distances will the greatest gravitational force be exerted by one object on another? 2 m
4m
6 m
8m

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.