Have relied on it so heavily, the birch tree began to become part of their culture

Answer (a) the itcz comes overhead for part of the year; i believe this is correct,plz check first; ///

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

To relate to humans in a relational humanly way. 

There is no map could you put up a picture of the map and i will try to .