The data table shows the changes in concentrations of EPA-monitored air
pollutants over time and the corresponding improvements in air quality.
Which pollutant has decreased in concentration the most since the EPA
started monitoring?

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.

If you get a map and put the countries a states all together it forms all one piece you can also tell because of the earth quakes

The form that the information for a map is store is by satellite image 

They don’t store and transmit heredity