Scientific models are used to explain and predict the behaviour of real objects or systems and are used in a variety of scientific disciplines, ranging from physics and chemistry to ecology and the Earth sciences.
Explanation:
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some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded
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Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?
What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere, b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify, d)anaerobic bacteria kept thriving with more oxygen