List and describe the achievements of the maya during the preclassic and classic periods.

The achievement of the Maya during the Pre-Classic and Classic periods are;- Architecture- Astronomy- Math
The Maya people were great builders who constructed great cities, roads and temples. Mayan Cities hand magnificent monuments, palaces with intricate designs and temple pyramids that are still evident today.

Answer the zagros mountains, stretch across western iran and are located next to the khuzestan plain; answer( zagros mountains

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