Cold air usually pushes warm air because cold air has a HIGHER DENSITY
Hopefully this will help and it's what you are looking for.
Answer: this is because bacteria that encounter such an environment UNDERGO DEATH AS A RESULT OF WATER LOSS FROM THE CELL.
Option C.
Explanation: Water is a great medium of growth for bacteria. Several experiments have been carried out to support this statement. Also, it is a means by which the bacterium is transmitted from "a site" to another.
False because it's an "OPINION" not a FACT.
