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Maya
Not to mention the time Viola insisted on speaking at my school and told
students the orange color found around many of Yellowstone’s hot
springs is lava, red hot lava. Then she hinted that there was a plot to
hide this information from the public! Although it’s true the park
has had many volcanic eruptions in the past, Vi prefers to ignore evidence
that the last lava flow in Yellowstone occurred about 70,000 years ago.
When I argued that most of the colors are actually microscopic living
creatures such as algae
and bacteria, Vi replied
that microorganisms are
too small to be seen without a microscope. This is true if we’re
talking about single individuals, but she either can’t or won’t
recognize that the bright colors are due to trillions of these tiny life
forms grouped together!
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| Q: What
causes most of the colors found around Yellowstone’s hot springs?
GLOSSARY:
algae—photosynthetic
microorganisms which are mainly aquatic and differ from plants because
of a lack of true stems, roots, and leaves
bacteria—unicellular
microorganisms that are members of Domain Bacteria
microorganism(s)—tiny
life forms such as bacteria or algae; individuals are usually not
visible to the naked eye
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