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首页 > 期刊问答网 > 期刊问答 > 为什么海洋探索如此重要议论文英语

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ellie820

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As we all know the sea food we eat is from the In the past,the oceans was very clean and beautifull,there were a lot of sea animals in But nowadays the oceans is dirty,many sea animals are we must keep them We must stop polluting The oceans is very important to us! As we all know the sea food we eat is from the In the past,the oceans was very clean and beautifull,there were a lot of sea animals in But nowadays the oceans is dirty,many sea animals are we must keep them We must stop polluting The oceans is very important to us! As we all know the sea food we eat is from the In the past,the oceans was very clean and beautifull,there were a lot of sea animals in But nowadays the oceans is dirty,many sea animals are we must keep them We must stop polluting The oceans is very important to us! As we all know the sea food we eat is from the In the past,the oceans was very clean and beautifull,there were a lot of sea animals in But nowadays the oceans is dirty,many sea animals are we must keep them We must stop polluting The oceans is very important to us! As we all know the sea food we eat is from the In the past,the oceans was very clean and beautifull,there were a lot of sea animals in But nowadays the oceans is dirty,many sea animals are we must keep them We must stop polluting The oceans is very important to us! As we all know the sea food we eat is from the In the past,the oceans was very clean and beautifull,there were a lot of sea animals in But nowadays the oceans is dirty,many sea animals are we must keep them We must stop polluting The oceans is very important to us!

为什么海洋探索如此重要议论文英语

276 评论(15)

ren8865

在地球上,海洋占据了71%的面积,海洋对人类的重要意义:现代科学研究表明,最早的生命起源于海洋,可以说海洋是人类的生命摇篮;海洋里有丰富的水资源,负担着全球的水体循环系统运转,影响甚至决定了全球的气候变化;海洋里有丰富的生物资源,从全球生物资源的多样性方面,提供了生物科学研究的标本;海洋里有丰富的经济鱼类、藻类资源,为人类提供了食物、油脂、化工材料、药物等等;海底有丰富的矿产资源,深海锰结核的矿藏比例是一个几乎无穷无尽的宝藏,海底也有丰富的石油、天然气、可燃冰储量;海洋自身的潮汐变化蕴含了几乎无穷的发电能源;海洋运输是目前最有效率的运输方式之一,靠近海洋的港口城市一般都能得到快速发展;海洋也是全球污染物的最终净化厂;海洋蕴含风险大型海啸、台风往往给人类造成巨大的灾难;由于气候的变化,预计中的海平面上升将淹没许多沿海低洼城市,对人类潜在性的损失无可估量 。海洋是地球上最广阔的水体的总称,海洋的中心部分称作洋,边缘部分称作海,彼此沟通组成统一的水体。地球表面被各大陆地分隔为彼此相通的广大水域称为海洋,其总面积约为6亿平方公里,约占地球表面积的71%,海洋中含有十三亿五千多万立方千米的水,约占地球上总水量的97%,而可用于人类饮用只占2%。地球四个主要的大洋为太平洋、大西洋、印度洋、北冰洋,大部分以陆地和海底地形线为界。目前为止,人类已探索的海底只有5%,还有95%大海的海底是未知的。
116 评论(10)

zt804617590

As we all know the sea food we eat is from the In the past,the oceans was very clean and beautifull,there were a lot of sea animals in But nowadays the oceans is dirty,many sea animals are we must keep them We must stop polluting The oceans is very important to us!
329 评论(11)

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