Enzymes , last question pls help

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

What kinds of molecules can pass through the cell membrane without any problem?

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