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

When the phosphorus element - whose name means "light bringing" - was first isolated, scientists noted that it glowed in the dark and burned when exposed to air
When what element - whose name means "light bringing" - was first isolated, scientists noted that it glowed in the dark and burned when exposed to air?

Force times distance is the equation for work.
Force times distance is the equation for what?

While some climate regions have multiple layers, arid regions are poor for development of soil.
While some climate regions have multiple layers, arid regions are poor for development of what?