An object is known to be 8,000 years old. what is this an example of?

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geographical equipment to analyze the composition of rocks