In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Question: What is formed when a subducting plate flows under another tectonic plate? Answer: volcanic arc
A volcanic arc is formed when a subducting plate flows under another tectonic plate.

Question: Natural convection is driven by what forces? Answer: buoyant
Natural convection is driven by buoyant forces.

Question: What type of diseases in humans are caused by protozoa? Answer: protist diseases

Protist diseases in humans are caused by protozoa.