Ask a New Question

Which type of barrier are coughing and sneezing?

a. mechanical
b. chemical
c. biological
d. physical

1 answer

a. mechanical

Ask a New Question or answer this question.

Similar Questions

Which are correct examples of physical (P), chemical (C), and biological (B) barriers?P: complement system; C: saliva; B:
1. 1 answer
Which are correct examples of physical (P), chemical (C), and biological (B) barriers?P: complement system; C: saliva; B:
1. 1 answer
Elizabeth was studying physical and chemical properties and created the table below to help her. Which property and example does
1. 1 answer
A light is connected to a battery as shown below. What type of energy transfer occurs?Electrical energy to mechanical energy
1. 9 answers

more similar questions