TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Renewable energy sources emit fewer or no greenhouse gases.

SOLUTION: What type energy sources emit fewer or no greenhouse gases?

PROBLEM: Salt-water biomes in the ocean are called marine biomes.

SOLUTION: Salt-water biomes in the ocean are called what?

PROBLEM: Scar is name for a piece of collagen-rich skin formed after the process of wound healing that differs from normal skin.

SOLUTION:
What is name for a piece of collagen-rich skin formed after the process of wound healing that differs from normal skin?