Gravitational energy

is a type of potential energy
is the energy of an object's position
is stored energy
all of the above

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

Question 17 (1 point) where does penicillin come from? a. it is a chemical that man invented b. it is a fungus c. it is a toxin made by other bacteria d. it was discovered in archaebacteria

Label the following as inner or outer planets; a) has 67 moons made mostly of hydrogen and helium b) has rings c)no moons, high volcanic activity d) known as the red planet, has 2 moons e) very thin atmosphere, moons or rings