Explain 4 important of rocks on human activities in points plz

What does the word submerged mean in the following sentence? after it rained for three days in a row, the streets were completely submerged.

Which of the following is an example of a policy that may be implemented by a business that has trouble with employees using the internet for their own personal needs? a. all employees will have to take a safety training class. b. employees caught using the internet for personal needs will have to take a professional development class. c. personal interviews will be conducted to find out who is using the internet for personal needs. d. employees will be monitored, but nothing will happen if their employer catches them using the internet for personal needs.

What is the amount of organic matter in all living organisms in a habitat called?