Your answer of your question is,
Explanation:
Environment
In you salivary glands there is an enzyme in the saliva that begins to break down the starches of the food.
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.