请认真阅读下列材料，并按要求作答。
《Big cities and the countryside》
Do you live in a big city？ Do you live in the countryside？ Some people like big cities, others like the countryside. Big cities are busier than the countryside. Big cities have more factories than the countryside. Big cities are warmer in winter than the countryside, and hotter in summer than the countryside. There are more trees in the countryside. There are more people in big cities. The countryside is greener and quieter than big cities.
请根据上述材料完成下列任务：