Question

question 10 out of 14:
the amount of time a product needs to remain on a surface to be sure it kills all the germs is known as:
(click for translation)
contact time.
disinfect time.
clean time.

Explanation:

In the context of germ - killing products (related to hygiene and disinfection, which falls under Medicine and Health, a subfield of Natural Science), "contact time" is the term used to describe the amount of time a product must remain on a surface to ensure all germs are killed. "Disinfect time" and "Clean time" are not the standard terms for this concept.

Answer:

A. Contact time