1. Gas mixtures emitted from present-day volcanoes resemble this early atmosphere, suggesting its origin from volcanic eruptions. 现代火山释放出的气体混合物类似于这种早期的大气,这表明它(地球)起源于火山喷发。
2. Today, skin color is evolving via new mixtures of people coming together and having children with new mixtures of skin color genes. 现在,肤色通过新的人群融合而进化,不同种族的人聚集在一起,于是后代拥有新的肤色基因混合。
3. Feeding birds has become so popular that prepared feed mixtures are readily available. 喂养鸟类已经变的如此普遍,以至于鸟的饲料随处可见。