The density of water in si units (international system of units) is:
a.
b.
c.
d.
a. 1 g/cm3
b. 1 pound/cu. ft
c. 1 kg/l
d. 1000 g/1000 ml

Less force and energy was applied

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

The answer is orbit around nucleus