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

Example Input: Constructive forces type of forces are involved when deposited rock forms deltas or barrier islands.
Example Output: What type of forces are involved when deposited rock forms deltas or barrier islands?

Example Input: Virtually all aquatic organisms depend directly or indirectly on protists for food.
Example Output: Virtually all aquatic organisms depend directly or indirectly on what for food?

Example Input: The vivid colors of flowers are an adaptation designed to encourage pollination by animals such as insects and birds.
Example Output:
The vivid colors of flowers are an adaptation designed to encourage what by animals such as insects and birds?