 Mineralogy is the science responsible for the identification of minerals and the study of their properties, origin and classification.
The minerals appear with a wide variedadde colors and structures, including such diverse types as the glassy black obsidian, jasper, jewelry, diamonds clear, hard and soft, white powder. Minerals are the source of valuable metals, such as ores extracted.
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Continental gentle contrast to the previous, has a dry season in winter.
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Continental humid: It occupies most of the temperate zone itself. It is
highly contrasted. In a very cold winter and dry summer is contrary to a
warm and rainy. The annual temperature variation is very high. At the
edges of the continental climate rainfall, though not abundant, are
regular.
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Climates of the world: dry and cold
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 In some places on Earth the air contains little moisture so that the
rainfall is scarce. In others, the temperature is so low that spend much
of the year or snow-covered ice cream. In the extreme case, in polar
climates, the ice remains all year.
Finally, there is a special kind of atmosphere that depends heavily on
the altitude rather than latitude. This is the mountain climate, where
we contrast between day and night temperatures often accused and where
rainfall have a special regime.
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Are climates where the average temperature of the coldest month is
between 18 º C and -3 º C and the mean temperature of warmest month is
above 10 º C. The coldest month temperature of -3 ° C coincides with the
limit snow-covered areas for a month or more. In this group there are
three different precipitation patterns that give rise to the three main
types of climate:
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Climates of the world's rainforests
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Although the variety of local climates on Earth is enormous, as ever,
scientists have been responsible for sorting. In this way we can get a
rough idea of the weather in various places on the planet and thus
better understand how their inhabitants live, animals and plants because
climate determines your lifestyle.
There's something for all tastes, from extremely dry climates, others
too wet or even others who split the year between the two extremes.
There are very warm climates, others very cold, some soft and some, at
altitude, with drastic changes within the day.
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