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

Ex Input:
The majority of arthropods live on land.

Ex Output:
Where do the majority of arthropods live?


Ex Input:
Unlike ammonia, oxygen cannot be liquefied at room temperature because its critical temperature is below room temperature.

Ex Output:
Unlike ammonia, oxygen cannot be liquefied at room temperature because its what is below room temperature?


Ex Input:
Some meteorites are made of iron and nickel and are thought to be very similar to the core of the earth.

Ex Output:
Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth?