What is the difference in a bacteria or a virus?Please state the answer in simple terms.?

A bacterium can reproduce itself. A virus needs another cell to reproduce. 

Do you mean to ask the difference between a bacterium and a virus?  Please state your question in simple terms

The most practical difference is that bacteria can be destroyed by antibiotics, so a doctor can give a prescription for bacterial infections. 

Viruses are smaller and cannot be treated with antibiotics. The corona virus is therefore a problem. 

That's available with a simple google search you can do all on your own instead of making us retype it for you.

Bacteria are much more complicated than viruses. Bacteria have a lot of parts, and can reproduce with just food, water, and air. Viruses have very few parts, they don't eat, and they need to infect bacteria or other types of living cells to reproduce.

Generally, bacteria are a lot bigger than virus.

Bacteria are alive, have cells, and viruses are smaller than a single cell (and have no cells).

Bacteria is a cell with DNA, metabolism, reproduction and response to stimuli. These are what makes something living.

A virus is just DNA with protein. It has no proper reproduction(other than putting its DNA in a host cell and use the host cell's organelles to copy itself, but not actual reproduction), no metabolism and no response to stimuli. That makes it non-living.

In terms of infections, a virus kills by making the host cell into a virus producing factory and a bacteria kills by producing toxins