For a research paper, you have just compiled a stack of resources in your school library. Which aspect would be best to consider when determining each source’s validity? A.
availability on the Internet

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

where is the subject? hahahaha

answer is :

many churches split during the movement.

new religions grew in popularity.