Question: can bacteria survive in water?

Rosie Coates answered on 19 Mar 2014:

Yes! Bacteria can survive pretty much everywhere on earth! In fact there are more bacteria living in 1.5 gallons of sea water than there are people on earth.

One of the most abundant kinds of bacteria in the sea is called cyanobacteria. This bacteria uses photosynthesis to convert light from the sun into energy it can use to grow and reproduce. This process produces oxygen as a waste product. Fossils of these bacteria have been found from 3.5 billion years ago and it is thought that they grew so successfully that they polluted the early atmosphere, which is thought to have been almost all carbon dioxide, with oxygen.

If it wasn’t for these helpful, water dwelling bacteria we probably wouldn’t be here today!!