This chart shows four atoms, labeled W, X, Y, and Z. These
atoms can combine with each other to form molecules.
Which atoms could join together to form a molecule of an
element?
Atom
W
X
Element
oxygen
hydrogen
carbon
oxygen
Wand X
X and Y
W and Z
Y and Z

Element

Explanation:

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.