What is population density? A.
the total number of people living in a certain area
B.
the average number of people in a given area
C.
the rate at which the world’s population is expected to grow
D.
the cultural or ethnic breakdown of people living in a country

The outer banks of north carolina are barrier islands that are subject to seasonal hurricanes and flooding. houses constructed along the shoreline and beaches of the outer banks would be most similar to houses in which of the foloowing locations

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Identify the type of weathering seen in each picture ? chemical weathering mechanical weathering