instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Some meteorites are made of iron and nickel and are thought to be very similar to the core of the earth.
answer:
Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth?


question:
Microevolution is the process by which organisms change in small ways over time.
answer:
What is the process by which organisms change in small ways over time?


question:
The magnetic field produced by a  current in a wire moves in concentric circles.
answer:

How does the magnetic field produced by a current in a wire move?