单词：haematoxin
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Even as the first day of autumn hovers over American shores, traces of summer linger. So, every year at this time, nearly half a million people step forward to help, to volunteer in an international coastal cleanup and the results can be staggering.
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If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause
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SCIENCE IN THE NEWS - Severe Ocean Storms: The Science of Nature's Power This is SCIENCE IN THE NEWS, in VOA Special English. Im Barbara Klein. And Im June Simms. Today we tell about the science of severe ocean storms. Severe storms that develop over
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This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Seismologists spend a lot of time listening to the earth. Ocean acoustic monitors have been providing information on the earths vibrations since the 1930
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