How did the ancient geeks know that the earth was round

The increase of pollutants from in mexico has raised concerns about garage to health and the environment

Most of earths fresh surface water is found in

Alaina wants to decide whether her current cell phone plan is better than a package that another company offers. to compare the two plans, she plotted two lines on a graph, where y represented the total cost of one month’s service and x represented the megabytes of data that she used in a month. which part of the graph will represent the cost per megabyte of data used in each plan?