Answer:
Infectious diseases are caused by pathogens, which include bacteria, fungi, protozoa, worms, viruses, and even infectious proteins called prions
Reduction
Explanation:
took the test
Radiometric dating, often called radioactive dating, is a technique used to determine the age of materials such as rocks.
I really dont know i just guessed :(
1.element
2.compounds
3.No
4.chemical formulas