Answer:
United States/Soviet Union
Explanation:
they were basically having an argument about who had the best and most powerful bombs.
Coral reefs C. provide the highest biodiversity of all marine ecosystems.
Biodiversity can be defined as the variety of living species that can be found in a particular place, ecosystem, region, etc. Coral reefs are considered to have the highest biodiversity of all marine ecosystem on the planet. Sitting on less than one percent of the ocean floor, coral reefs are home to more than twenty-five percent of marine life.
The correct answer is letter C.
Explanation: In the sixth paragraph the author is identifying and then examining the motivations of different groups of people by stating in that way.