Mountains

Mountains Earth has a lot of mountains. Mountains cover about one fourth of all land. Mountains come in many sizes. At the bottom of mountains you might see grasslands and forests. As you move up the mountains, the plants and animals slowly disappear. High up, the trees do not grow any more. Many of the tallest mountains have ice or snow, it melts in hotter parts of the year.

大山 地球上有很多山。山脉覆盖了大约四分之一的陆地面积。山有各种各样的大小。在山脚下，你可能会看到草原和森林。随着你向山上走，植物和动物会逐渐消失。在高处，树木不再生长。许多最高的山上都有冰雪，在较热的季节会融化。