Three similarities between Wegener and Hess theory. What are three differences

Migration people get up and go cause they feel it is best for them 

The answer is 1-plate movement along fault lines

Mexico has a host of environmental problems, including significant chemicalpollution  from factory discharges and waste dumping, but the main threat to itsbiodiversity  probably stems from  deforestation  and other natural habitat losses. forest habitat is lost for a number of reasons