Answer: A (physical property)
Explanation:
It says they both had clear liquids in each cup and since ice floats on water the only option that makes sense is A. There were no chemical, magnetic, or temperature tests made.
The correct option is D. This is because, mucus, inflammation and fever perform different functions in the immune system.The mucus membrane produces mucus which traps microbes. Inflammation refers to a localized tissue response which occurs when a tissue is damaged. Fever inhibits bacterial growth and speed up the rate of healing of a damaged tissue.
The answer to this question is option D
