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What effect do calcium ions have on the water in ecosystems? A. They reduce its pH. B. They decrease its salinity. C. They add to its hardness. D. They increase its acidity.
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What effect do calcium ions have on the water in ecosystems?

A. They reduce its pH.
B. They decrease its salinity.
C. They add to its hardness.
D. They increase its acidity.

User UncleKing
by
8.9k points

2 Answers

2 votes

Answer:

They add to its hardness (Apex)

Step-by-step explanation:

User Sofox
by
8.2k points
3 votes
I believe it is C.They add to its hardness.
User Batia
by
8.8k points
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