Various sanitation practices changed as a result of germ theory of disease.
Germ theory states that germs are the causative organisms of various diseases. Germs include several microbes like bacteria, fungi, virus, protozoa etc. These microbes invade the host body and multiply inside the host body.
Prior to germ theory there were several other theories like the miasma theory but the discovery of microbes proved them to be false. Germ theory brought several changes in sanitation practices and thus has several applications.
John snow an English physician who studied cholera suggested that the transmission was through water contaminated by the faecal matter of infected people.
This discovery gave the idea that sanitation practices have to be improved. The disinfection of surgical instruments is also an improvement that was made in sanitary practices after the formation and acceptance of germ theory.
answer: tributaries flow into rivers.
wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.
tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.
meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.