Which of the following statements best explains what researchers have discovered about the cause of the fall of the maya civilization? a. diseases brought by european settlers wiped out the maya population. b. a drought in the maya region killed all of the crops and left people without food. c. constant wars among city-states killed many of the maya people. d. the reason for the fall of the maya civilization is still unknown.

D. The reason for the fall of the Maya civilization is still unknown. There are many  different theories  attempting to explain the cause of the Classic Maya collapse and the abandonment of Maya cities in the southern Maya lowlands of Mesoamerica between the 8th and 9th centuries: climate change, drought, deforestation, etc. but although the drought is the leading theory at the moment the truth is yet unknown.

number 4. should be the correct answer

superior technology and improved medical knowledge to foster imperialism. quinine enabled europeans

to survive tropical diseases and venture into the mosquito-infested interiors of africa and asia. the combination

of the steamboat and the telegraph enabled the western powers to increase their mobility and to quickly respond

to any situations that threatened their dominance. the rapid-fire machine gun also gave them a military advantage

and was in convincing africans and asians to accept western control. the following table summarizes the

causes of the new imperialism:

causes of new imperialism

economic military/political humanitarian/religious technological

need for markets need for military bases white man’s burden new medicine

raw materials national security spread of christianity new weapons

source of investments source of

pride—nationalism

social darwinism

(superiority of western

society)

transportation

i