What is required for an electric charge to flow through a wire

The correct answer is "electromotive force".

Explanation:

If the battery is connected to the conductor which makes the flow of the electric charge. Battery forces the charges to flow. The rate of flow of charges constitutes the electric current.

The electromotive force is required for an electric charge to flow through a wire. Here, it is provided by the battery.

Battery allows the flow of electrons between cathode and anode. The cathode is at lower potential and the anode is at higher potential. The charges flow from lower potential to the higher potential.

Therefore, battery is required which provides electromotive force for an electric charges to flow through a wire.

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.