I believe it is A. Teacher because that is a career.
171 km³ per year.
0.006% = 0.006/ 100 = 0.00006 ;
0.00006 * 2,850,000 km³ = 171 km³ per year.
World human population reached one billion
Answer:
the study of civics is the study of the rights and obligation of citizens on society.
current events is the important events or social events that are happening in the world now.
political science is the study of how people get or compete for power and how it is used in governing a country.