以下由出國留學(xué)網(wǎng)英語頻道為大家提供的：
1、earth 2、found 3、plant and animal.4、 Because they can help5、Because of human6、 the conservation of 7、increase species 8、the likelihood of soil erosion, landslides and floods9、 the forest is key to many of the planet's natural cycle, such as carbon and water cycles
1、earth 2、found 3、plant and animal.4、 Because they can help5、Because of human6、 the conservation of 7、increase species 8、the likelihood of soil erosion, landslides and floods9、 the forest is key to many of the planet's natural cycle, such as carbon and water cycles