求修改語法!就可以直接在上面修改,在文章上面改成正確的語法就可以
1.Coral reefs（珊瑚礁） are the group of coral insects（珊瑚蟲）.They made by the coral insects or fishes produces calcium.Calcium produced by some fishes and coral insects reacts with the carbon dioxide and then,produce calcium carbonate.Accumulation of this kind of calcium carbonate is coral reefs.If this kind of organism（有機(jī)物） produces less calcium,the skeleton（骨骼） of them will be weaker than before.It will cause the decrease or discontinuance（中止） of coral reefs’ formation.And the producing of the calcium is related to the calcium carbonate’s saturation（浸濕,飽和） rate in the sea.The reaction between the melted carbon dioxide and calcium carbonate makes the calcium carbonate’s saturation diminish.It means the existence（存在） of coral reefs are in danger.Coral reefs’ ability of photosynthesis（綜合） per area is stronger than the tropical forests in the world,because the sun causes the photosynthesis（光合作用） over the ocean.These are the chemical equations (most of the coral reefs are made of calcium carbonate)
2.The table below this paragraph is about the level of carbon dioxide in the same month in Hawaii.The Statistics (統(tǒng)計(jì)) shows us the carbon level from 1958 to 2009.It shows in black and white because of the increasing discharge and shows us the terrible pollution in the atmosphere.Pre-industrial (recent history) levels are said to have been at around 280 parts per million.And there is another painful thing that the information does not include:the other polluted gas like such as methane also cause different degree of air pollution.All the measures of the polluted gas are increasing and constitute a serious risk of atmosphere.
The pollution is much more serious in north hemisphere,because there are more lands,more plants and more animals in north hemisphere.Because of this,the organisms would produce more carbon dioxide.Every year,the bodies of organics decay（腐爛） and the carbon from their bodies in order to produce the carbon dioxide.Also,when people burn the coal,the burning pieces of coal would produce much carbon.All the organics are made of carbon,so if they live,they will produce carbon all the time.
如果能修改好的話,