The statement that states have intangible boundaries is false. Your answer is B
Answer:
Option: A. True
Explanation:
The Maya civilization covers regions that spread from northern Mexico southwards into Central America. The Maya stretched from modern-day southern Mexico through Guatemala, Honduras, and Belize. The culture is renowned for its massive pyramids, irrigation systems and agriculture, and symbols. Most of the ruins are still discover in the jungles of Mexico and Guatemala, which remain unknown since the colonial period in Mexico under the Spanish Empire. The civilization fizzled out between A.D. 800 and 1000 before the arrival of Spanish in Central America that led structures remain untouched in the jungle for centuries.
In the earth’s mantle , large amounts of heat are transferred by convection currents, which would cause the heat from the core and the mantle itself causes convection currents in the mantle . The hot rocks eventually will cool and sink back through the mantle which will make the cycle repeat which would be the cycle of rising and sinking .