1. The rise and fall of each world leading powers prior to the United States is recorded in the Bible.2. Subprime mortgage defaults greatly impacted the housing market boom and bust cycle.
 the rise and fall of something boom and bustThe rise and fall of each world leading powers = 世界各強國的興衰the housing market boom and bust cycle = 房市的興衰週期
這是一個連環問題: 燃燒石油導致二氧化碳增加，二氧化碳增加導致溫室效應，溫室效應導致冰層融化、海平面上升。 (請填空)
This is a chain of problms. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effect, which leads to melting of glaciers, which leads to rising sea levels.