Answer:
Phosphoric acid is a good substitute for muriatic acid and in most situations will clean surfaces just as well with less risk. Phosphoric acid is a main ingredient in many commercial grout and concrete cleaners that are readily available to consumers.
Explanation:
Answer:
D, all of the above.
Explanation:
The right activity is important so that you don't hurt yourself doing something too strenuous.
Your need to know the exercise in order to not get hurt. Technique is very important to prevent injury.
Training in sensible locations means that:
If you hurt yourself, you can get help.
You have enough space to perform an exercise.
You have the right surroundings to perform an exercise (you wouldn't do a flip onto concrete).
Answer:
a over load progression recover
