What kinds of images are made by painting or drawing on top of the surface of a rock?

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

Atomic nuclei of almost all elements consist of

Most of the volume of an atom is occupied by the