Which statement is true about the Earth's oceans? A: they are all getting larger.
B: they have changed over time.
C: they have not changed in 4 billion years​

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