It is in urban areas today where seventy-five percent of the world’s population lives. most of the land is used for housing, transportation, commercial interests, and manufacturing. one-quarter of each city’s land is still being used for farming. most residents either grow, harvest, or sell crops.

The mantle is made up of which structural zones?

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.

Match the region in column 1 to the river in column 2