TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Thermosphere is the upper-most atmosphere.

SOLUTION: What is the upper-most atmosphere known as?

PROBLEM: Lead sulfate is the white solid that forms on corroded battery terminals.

SOLUTION: What is the white solid that forms on corroded battery terminals?

PROBLEM: Most red algae species live in oceans.

SOLUTION:
Where do most red algae species live?