With no yard, people can also keep a garden.
A rooftop(屋顶) garden is on the roof of a building. It is a kind of waste(浪费). So it is nice to change roofs into a garden.
Rooftop gardens are not a new idea. There are rooftop gardens in Ancient(古老的) Mesopotamía, Ancient Rome and Ancient Egypt. At that time, there are always fights. Fights damage(毁坏) yards, farms and food.
Plants on the roof make the building cooler(更凉爽). So people there use air conditioning(空调) less(更少). It means people use less electricity(电).
Rooftop gardening is very difficult. First, be safe(安全的). Build a fence(栅栏). Second, the rooftop gardens get lots of sunlight. If your plants can't get too much sunlight, put them indoors sometimes.
A. Today's rooftop gardens are good, too. B. People don't usually use the roofs in cities. C. So rooftop gardens become places to grow food. D. That is a rooftop garden. E. Here is some advice. |
