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

When water is heated by magma and makes its way to the surface and creates a(n) geyser.
When water is heated by magma and makes it's way to the surface what is created?

Some meteorites are made of iron and nickel and are thought to be very similar to the core of the earth.
Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth?

Proteins are the most numerous and diverse biochemical compounds.
What are the most numerous and diverse biochemical compounds?