The greenhouse effect is a result of

a. reflection of solar energy by cloud cover.
b. absorption and radiation of energy in the hydrosphere.
c. absorption and radiation of energy in the atmosphere.
d. aerosolization of dust and gases produced by volcanoes.

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.

Why is immigration so important today?

Political boundaries are determined by the political party in control at the time. true or false