Which actions conserve fossil fuels? Choose the two correct answers.

A.
wasting food

B.
riding a bike

C.
planting trees

D.
buying bottled water

E.
using less electricity

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

List the path of the respiratory system