Question

1. which would not form an organic fuel?

○ oxen
○ bones
○ trees
○ plant roots

Explanation:

Organic fuels form from organic matter (carbon-based, once-living) under heat/pressure over time. Oxen (animal biomass), trees, and plant roots are all soft, carbon-rich organic materials that can be converted into fuels like coal or biodiesel. Bones are mostly composed of inorganic minerals (like calcium phosphate) with only a small organic component, so they cannot form a viable organic fuel.

Answer:

bones