1. The janitor neglected his duty on the day the robbers broke into the school. The janitor was fired immediately.2. A sign at the entrace of a private property says, "Private property. No trespassing."
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 chai of problems. 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.