Outline how Ordnance survey maps can be used in an investigation into changing physical environments

Which of the following statements best explains why there tends to be a greater number of large cities in southern africa than the east africa

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !