instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Constructive interference is when two waves combine to create a larger wave.
answer:
What is it called when two waves combine to create a larger wave?


question:
Ocean ridges formed by marine invertebrates living in warm shallow waters within the photic zone of the ocean are called coral reefs.
answer:
Ocean ridges formed by marine invertebrates living in warm shallow waters within the photic zone of the ocean are called what?


question:
Natural convection is driven by buoyant forces.
answer:

Natural convection is driven by what forces?