instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
When magma heats groundwater, it may come to the surface as a hot spring or a geyser.
answer:
When magma heats groundwater, it may come to the surface as a hot spring or a what?


question:
Phospholipids are vesicles made of.
answer:
What are vesicles made of?


question:
All vertebrates reproduce sexually.
answer:

In what way do all vertebrates reproduce?