1. The distraught mother of a kidnapped child broke down and eventually fainted.2. High school students are in a restless mood as they eagerly find out which college they have been admitted to.
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 problems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effect, which leads to melting of laciers, which leads to rising sea levels.