Our geologic time scale was constructed to visually show the duration of each time unit. This was done by making a linear time line on the left side of the time columns. Thicker units such as the Proterozoic were longer in duration than thinner units such as the Cenozoic. We also have a printable version of the Geologic Time Scale as a .pdf document. You can print this timescale for personal use. Author: Hobart M. King, Ph.D.
The definition of import is to introduce or bring goods from one country to be sold in another. 1  An example of import is introducing a friend from another country to deep fried Twinkies.  An example of import is a shop owner bringing artwork back from Indonesia to sell at their San Francisco shop.
Exports are any resources, intermediate goods, or final goods or services that a buyer in one country purchases from a seller in another country. Export.gov provides tools, assistance, and expert knowledge to help your company grow in the global marketplace.