树有多大海报?植树节海报怎么画

我们要做一份海报.关于植树的8个原因.用英文表达`````急将

To reduce carbon dioxide （减少二氧化碳）;

To reduce pollution（减少污染）;

To make our surroundings more beautiful（美化环境）;

To prevent desertization（避免沙漠化）;

To provide the birds with home（为鸟类提供家园）;

To enhance human health（促进人类健康）;

To give shelter from sandstorm (抵御沙尘暴);

To prevent soil loss（避免水土流失）