The earth and its gravity Earth gravity is an accelerative force that tends to move masses toward the earth's center of mass.
(The earth and its gravity Earth gravity; is; an accelerative force that tends to move masses toward the earth's center of mass) (an accelerative force; tends; to move masses toward the earth's center of mass) (an accelerative force; to move; masses; toward the earth's center of mass)
The earth and its gravity Earth gravity an accelerative force an accelerative force
is tends to move
an accelerative force that tends to move masses toward the earth's center of mass
to move masses toward the earth's center of mass
masses toward the earth's center of mass