Calories indicate and measure the energy available in food. Protein each contain 4 calories per gram.
Answer:
Acids lower the pH of freshwater and bases raise the pH of freshwater.
Explanation:
If a substance is too basic, it could possibly harm another organism living in the freshwater source. If it's too acidic, it could possibly make unsafe living conditions in that environment. That's why you should always check the pH level in the fish tank and in the pool to see what the pH is. A pH of 6 - 8 is always safe for fish, whereas a pH of 5 - 9 is safe for pools.
Explanation:
Acids: 0 - 6
Neutral: 7
Bases: 8 - 14
You didn't put any of the options but I would probably say something like because America is becoming obese and fat.
Answer:
There is no possible way to prevent this.
Explanation:
Unless you count not skating at all. Her luck isn't on her side. Well, she could've used a railing or double skates.
