Answer:
the answer is b
Explanation:
that was just a letter not an answer
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
The last one because empathy is when you feel bad for another person.
The answer is Cardiovascular. Running and swimming and cycling are all considered <span>aerobic.
Hope this helps. </span>