To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events
<span>C) taught Chinese history and government in elementary schools</span>
I think b because it covers up more space than the others. Just a guess
The hundreds of Indian peoples and tribes had many languages and ways of life
There are many political parties is false
