It is used to determine the age of an ancient object. The process is called radiocarbon dating. Carbon-14 is a naturally present isotope that is produced when cosmic rays collide with nitrogen and as a result it is oxidized to be become CO2.
Answer: The correct answer is A. Court have upheld the legality of psychological screening of police candidate.
The correct answer choices should be A.) The maniple was a flexible military unit and C.) The Roman soldiers built roads and bridges. Hope this helped!
Temperature decreases will affect the water cycle. Since the temperature is lower, less water will evaporate. Water has a specific boiling point at which it evaporates and if it is lower than that temperature, the water cannot evaporate. Colder air holds less water vapor, which leads to less rain and can cause droughts. This will throw the entire water cycle off balance.
Slave Labor
Otherwise known as the unpaid labor of enslaved workers.