Answer:
Respiration...................
A) The data to support his hypothesis, so he should investigate if the same change happens in the density of solid water.
Answer:
Expired food and drugs; expired food and drinks that has stayed beyond the appropriate time
Impure water; impure water is dirty water that is not fit for the body system
Unripe fruits; fruits that is not yet due for...
Infested food
Poorly cooked food
Cigarette
Explanation: