Answer: Convection
Explanation: Cold water sinks because it is more dense than warm water.
Warm water rises because it is less dense than cold water.
Answer:
An acid increases the concentration of H+ ions. A base is a substance that releases hydroxide (OH-) ions in aqueous solution, donates electrons and accepts protons.
Acid:Lemons, oranges, vinegar
Base:Soap, toothpaste, bleach, cleaning agents, limewater,
Explanation:
Water intake is essential in the prevention of heat related injuries