Here's why:

* Origin: Kerosene is a refined product derived from crude oil, which is a naturally occurring fossil fuel formed over millions of years from the remains of ancient organisms.

* Composition: It's a mixture of hydrocarbons, similar to other fossil fuels like gasoline and diesel.

* Energy source: Kerosene is burned to produce energy, just like other fossil fuels.

While it's true that kerosene is a refined product rather than a raw material like crude oil, this doesn't change its fundamental nature as a fossil fuel.