求大神告诉我这道英语题的答案在线等。。。急急急，谢谢！

Answer 1

Trouble is brewing beneath the wave.Biologists report that marine diseases are on the rise,and the ocean's inhabitants-fish,mammals,plants,and invertebrates alike-are suffering.
在波浪下的麻烦正在酝酿之中，生物学家们报告说，海洋疾病正在上升，海洋中的居民鱼、哺乳动物、植物和无脊椎动物都受到了痛苦的折磨。
nobody knows the exact cause of the ocean diseases,but human activity undoubtedly plays a role.Untreated sewage is thought to feed outbreaks of toxic algae,such as the fish-killing industrial waste may be responsible for the rash of tumors seen in fish around coastal cities.
没有人知道海洋疾病的确切原因，但人类活动无疑起到了作用，未经处理的污水被认为是导致有毒藻类的暴发，如鱼造成的工业废物可能导致沿海城市的鱼出现皮疹。