Im sure the answer is b .
why did president kennedy push for the expansion of nasa? (1 point)
to provide high-tech jobs for the american workforce
to compete with the soviet union in space exploration
to improve the united states' nuclear weapons systems
to improve science and math education in the united states

food chain i would say only because there is competition on getting food and survival

        i'm fairly sure that the correct answers are 2 and 3.

        i used both my knowledge of world history and the process of elimination to obtain these answers. option 1 cannot be a possible selection because the mandate of heaven belongs to ancient chinese philosophical belief. option 4 sounds like it would benefit the region than detriment it. however, both 2 and 3 explain a potential reason for what could have contributed to the fall of the roman empire.

      hope this ! if i were you, i'd get a second opinion, because i haven't taken this course for a year. best of luck!

***websites that me understand the curriculum better last year are and ***