Mexico has a neutral migration rate? true or false

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

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

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