4. Acid rain is formed due to the contribution from the following pair of gases: 1) Methane and ozone
2) Oxygen and nitrous oxide
3) Methane and sulphur dioxide
4) Carbon dioxide and sulphur dioxide

Witch layer of the atmosphere has the most air pressure

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.

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)