Geography, 04.08.2019 23:30 alyshaaa36

The release of fluorocarbons used in household sprays destroys the ozone layer in the upper atmosphere. suppose the amount of ozone is given by , 0025 . 0 0 t e m m − = where t is measured in years. how long will it take for 70% of the ozone to disappear, rounded to the nearest year?

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