How do Singapore and Myanmar represent the opposite extremes of economic development in Southeast Asia?

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

No, because you are more likely to see volcanic mountains where magma is rising along the mid-ocean ridge spreading to the center.