| A bloom is when a dense area of algae forms and spreads. 当大面积的海藻聚集然后扩散时，海藻暴发就产生了。 Some blooms can harm people, animals or the environment. 有些暴发对人类、动物或者环境是有害的。 Warmer water can cause blooms, and some scientists think global warming is adding to an increase in large ones. 温水会引起海藻暴发。一些科学家认为全球变暖也为大型水藻暴发增加机会。 Nutrients from sewage and agricultural fertilizers also help algae grow. 污水和农业肥料中的营养物质也有助于海藻的生长。 Blue Marble is a start-up company with private investors. Blue Marble 是私人投资建立的公司。
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