Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Input: Consider Input: Compression zones is the opposite of rarefaction zones, where air molecules in waves are loosely packed.

Output: What is the opposite of rarefaction zones, where air molecules in waves are loosely packed?


Input: Consider Input: Producers in an ecosystem generally get their energy from the sun.

Output: Where do producers in an ecosystem generally get their energy from?


Input: Consider Input: The human gene for insulin placed into bacteria through the transformation process.


Output: Through which process is the human gene for insulin placed into bacteria?