alkaline-earth metals

例句：

1. 1. These minerals are used in the production of fertilizers and pesticides.
   这些矿物用于生产肥料和农药。
2. 2. The alkali earth metals can be used to make soap and detergents.
   碱土金属可以用来制作肥皂和洗涤剂。
3. 3.The alkaline earth metals are important for the growth of plants and animals.
   碱土金属对植物和动物的生长非常重要。