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Coal—A Complex Natural Resource. ... and arrangements of the macerals and minerals in a coal sample. ... The science and technology of coal and coal utilization: ...
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Video embedded· See pictures of minerals (azurite, gypsum, and others) from National Geographic.
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In deciding on a cover image for this issue, the Science News team had a difficult choice to make: Do we print a picture of a tick that reminds readers how much we ...
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Science Benchmark Weather describes conditions in the atmosphere at a certain place and time. Water, energy from the sun, and wind create a cycle of changing weather.
An earlier question in The Last Word gave warnings about eating leftover rice. I have seen this advice before, saying it is not safe to keep cooked rice for more than ...
A growing number of companies transact a significant portion of their business accounting through international channels. Even those corporations conducting business ...
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Earth is the third planet from the Sun and the only object in the Universe known to harbor life. According to radiometric dating and other sources of evidence, Earth ...
Texas Rep. Lamar Smith, the Republican official in charge of the House Science, Space, and Technology Committee, has now penned an editorial urging the public not to ...
Coal is a combustible rock of organic origin composed mainly of carbon (5098 per cent), hydrogen (313 per cent) and oxygen, with lesser amounts of nitrogen, sulphur ...
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Upon these facts in general, depends the action of the mineral tans used in tanning furs. ... mineral in Science Expand. ... Difficulty index for mineral.
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Greenpeace will never stop fighting for a greener, healthier world for our oceans, forests, food, climate, and democracy—no matter what forces stand in our way.
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