Which kind of map would be used to show population density in the countries of the world?
1. a political map
2. a physical map
3. a resources map
4. a special purpose map

Suggest two reasons why irrigation is important for human development of the desert (4 marks)

Air masses are characterized by various properties including temperature humidity air temperature pressure and wind speed . which of the following air masses is associated with low relative humidity and high temperature

These factors threaten north americas ecosystems