<span>The sparse area surrounding a spiral galaxy is called a
Halo
</span>
False
Balanced forces mean that there is no net force acting on the object. therefore, the object will not accelerate.
Look at this table. Accleration of gravity means gravitational constant.
The correct option is PLUM PUDDING, SOLAR SYSTEM, ELECTRON CLOUD.
J. J Thompson was the scientist who proposed the plum pudding theory of atomic model. Neil Borh was the one who developed the solar system model of atomic theory while the electron cloud model of atomic theory that is presently been used was developed by an Australian scientist called Erwin Schrodinger.<span />
