>By this quiz rationale, your average vegetable wouldn't be vegan because it may rely on animal fertilizer... Heck, this could be extended to the use of oxygen

>By this quiz rationale, your average vegetable wouldn't be vegan because it may rely on animal fertilizer... Heck, this could be extended to the use of oxygen to breathe. It's another byproduct of a plant process that has animal waste (CO2) as an input.