In order for work to take place the energy present must be related to the movement of the object
the force applied must be a balanced force resulting in motion of the object
the force applied must cause the movement of the object in the same direction as the force
the movement of the object must be the cause of the force

The best answer is (a) which is universal law is in effect at all times. it is constantly at play in everything we do and governs our lives. it is also important to note that universal law applies to not only everything on earth, but everything in the universe as well, which is another reason why it is in effect at all times.

Dformation of a precipitate

Carbon dioxide because it consists of one type of molecule.