How is flu dissimilar from coronavirus?
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Rotenone is an insecticide that is toxic

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

How water is moving through the ecosystem ?