It's the one in the pic u where about to click
A strong acid is a number between 0-6 on the pH scale and Bases are between 8-14 on the pH scale the difference is how much hydroxide each one has like coca-cola (acid) and backing soda (base)
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Unlike previous mass extinctions, the sixth extinction is due to human actions. Some scientists consider the sixth extinction to have begun with early hominids during the Pleistocene.
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Aquifers are the natural accumulation of runoff and precipitation. Below the surface, this runoff then percolates into crevices between rocks, silt the other material.
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By promoting what we have been taught by them
