Swimming because it uses all body strength! they actually use it for physical therapy too!
Answer: hard water because it has a high concentration of calcium and magnesium
Explanation:
The hardness of water is because of the presence of an appreciable amount of magnesium and calcium in it. These minerals make the water hard. As the hard water contains a high concentration of magnesium and calcium, drinking hard water will increase the daily intake of minerals along with those obtained from food. Hard water is also considered good for the cardiovascular system. Thus the hard water can be considered the best beverage choice.
The answer is C. 100 per minute. I just took the test, so this is the answer just in case you need to know.
