Answer:
4.22
Explanation:
pH scale ranges from 0-14. 0-7 being the acidic range with 0 being the most acidic, 7 -14 is the basic range with 14 being the most basic.
Hydrosphere<span> isnt an isolated system, it interacts with the other global systems, which includes the </span>atmosphere and l<span>ithosphere
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