instruction:
Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.
question:
Fact: a phase change is when matter changes from one state into another state
answer:
All the water vanishes from a small depression basked in sunlight on a paved road because of?


question:
Fact: skidding causes speed to decrease
answer:
Slamming the breaks in a car will?


question:
Fact: oceans cover 70% of the surface of the earth
answer:

What substance covers more than sixty nine percent of the third rock from the sun?