How many microorganisms exist?
No one can be sure, especially with so many that are known to be undetectable with even the most powerful of microscopes. It has been suggested that we are only aware of less than 10% of the microorganisms that may exist on our planet. They exist everywhere from the extreme cold of the arctic to the very hot temperatures of volcanic vents. The more humidity the greater their population may be, but even in dry climates, if there are lots of airborne particles, they may reside on/within them. Your hands may have gathered millions of microorganisms by the end of the day. And even if you wash your hands thoroughly, you may still have hundreds left on your hands. You may be able to kill off practically all of the microorganisms from your hands with alcohol, but as soon as you touch something or even if you don’t, over time, airborne particles will eventually get to your hands as well as their microscopic inhabitants. We may want to do without the “bad” microorganisms, but we definitely cann
