What is the impact of bacteria around garbage dumps?

Everyone is particularly afraid of staying near a garbage dump for a long time, because the environment near the garbage dump is very bad. For example, there will be a foul smell and a lot of mosquitoes. In addition, there will be more bacteria near the garbage dump. However, some people need to work, such as cleaners, and especially those who specialize in transporting garbage, need to frequently come into contact with the garbage dump, so they are easily affected by the bacteria in the garbage dump.

The hazards of bacteria around garbage dumps:

Bacteria are a large group of invisible microorganisms that often move around us.

Bacteria can be found in the air, water, soil, garbage dumps, on the bodies of animals and plants, and in dark and damp corners.

When you hear the name bacteria, don't think that they are all bad guys.

Some of them are good friends of humans!

Like yeast, it is a little technician of fermentation.

It has a special set of abilities. Once it falls into sugar juice or fruit juice, at the appropriate temperature, it will break down sugar into alcohol and carbon dioxide, helping to make wine. Some bacteria are active in the soil. For example, decomposing bacteria can decompose proteins in manure and dead animals and plants, turning the proteins into nitrates to meet the needs of plants. It also has lactic acid bacteria that ferment radishes, cabbages, etc. to make sauerkraut. Because these bacteria are beneficial to the body, they are called probiotics.

The other part, the bad guys that specifically make people sick, are called germs.

Whether they are beneficial bacteria or pathogens, they are very small and people cannot see them. So, nearly three hundred years ago, no one in the world knew that there were bacteria on the earth.

How did you find out later?

The microscope helps.

Microscope is the eye of science. It reveals the secrets of the tiny world and allows people to see the activities of bacteria. So, who invented the first microscope?

He is a Dutchman and his name is Janssen.

Johnson's father was an optician. As a teenager, Johnson loved playing at his father's workbench. Once, he put two polished lenses in a copper tube and used it to read the words on a book, and the words became very large. He told his father about this, and his father was very happy. He made the first microscope according to his device.