Answer:
C
Explanation:
they ensure u have healthy ingredients since u planned it
I think
C. provide an objective measure of physical fitness
Answer:
An estimate of a person's maximum age-related heart rate can be obtained by subtracting the person's age from 220. For example, for a 20-year-old person, the estimated maximum age-related heart rate would be calculated as 220 – 20 years = 200 beats per minute (bpm)
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
exercising once a day for 30 minutes keeps your body healthy and fit. so when you are getting older and ready for retirement, you can still enjoy vacations and outdoor activities that require the use of your muscles.
