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.
This question has a two part answer. The first part is that an asteroid hitting the earth and the second part is massive volcanoes erupting around the world.
Light is to find the distance between planets called light years.
