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Calcium and magnesium dissolved in water are the two most common minerals that make water "hard." The degree of hardness becomes greater as the calcium and magnesium content increases and is related to the concentration of multivalent cations dissolved in the water.
Good oxygen usage during exercise, low resting heart rate, and good step- test results, are some of the GOOD things that come from regular exercise.
High blood pressure <em>(A)</em> is one of the BAD things that happen to people who DON't exercise regularly.
What task do you what to accomplish?
Answer:
Explanation:
The body's energy supply is met by the metabolism of glucose in cells using oxygen. The problem with Lucille's respiratory and circulatory system can make it difficult for her to take part in a soccer game because the needed energy would not be available for her to participate in the game.
