Historians do not know the real reason why the Maya civilization disappeared.

1)True

2)False

true(i think)

Explanation:

Scholars have suggested a number of potential reasons for the downfall of Maya civilization in the southern lowlands, including overpopulation, environmental degradation, warfare, shifting trade routes and extended drought. It's likely that a complex combination of factors was behind the collapse.

not to sure sdi, strategic defense initiative

the answer is catholics