Where were america's first roads built? beside existing waterways through the less dense areas of forests as closed to seas as possible near big cities

They were built by lots of labor and lots of dirt clay and gravel

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

Ansarabs took control;