By Pam Walker
It's only typical for individuals to be fascinated with the ocean. existence originated within the oceans, and greater than one-half of the folks on the earth live inside 50 miles of the ocean. in spite of the fact that, even supposing we've got despatched explorers to the moon and different areas of house, we nonetheless comprehend little in regards to the frontier that surrounds us. The attractive new "Life within the Sea" set presents younger readers with present, available information regarding the ocean and its creatures. This entire source at the ocean's population offers dwelling issues of their actual habitats, emphasizing the connection among marine biology and marine ecology. every one quantity makes a speciality of one particular sector of the marine international, discussing its actual features, the residing issues came across there, and the impression people have at the quarter. the right spouse to "Facts On File's existence in the world" set (see dealing with page), this priceless reference offers a well-rounded view of marine lifestyles.
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Radioactive materials are dangerous for thousands of years, and their disposal may be one of the toughest problems facing environmentalists. Most ocean pollution is the result of short sightedness and lack of planning on the part of humans. The clearest lesson that emerges is that people can, and do, pollute, often because they do not see the advantage of taking care of the marine environment. By gaining a better understanding of the oceans’ importance, the world’s citizens may also begin to see the advantages of taking care of the resources.
Because organochlorines cannot be easily broken down by bacteria, they stay in the environment for long periods. Another problem stems from the fact that DDT and its relatives evaporate easily so they can also enter the ocean through the water cycle. After vaporizing, they can travel in the atmosphere to any place on Earth, then fall into the ocean as precipitation. Organochlorines are not used in United States anymore, but some developing countries still produce and apply them. In ocean ecosystems, DDT and other polluting chemicals are first taken up by phytoplankton, which are eaten by zooplankton.
5 km) wide. Oil-spill control experts drilled two relief wells into the sides of the spewing wellhead to relieve the pressure in hopes that workers could get close to the blown wellhead and close it Oil, Trash, and Toxic Marine Pollution off. At the same time, skimmers, equipment that can remove oil from the water’s surface, were brought in to control its spread. The chopping waves and strong winds rendered them largely ineffective. The relief wells failed, forcing the engineers to try other solutions.