Wow that's wordy - and quite complicated. Our Science doesn't cover this but the first bit is about the fact that there are drawbacks with furnaces and blast iron has to be used as cast iron because the pressure in the furnace is extremely high.
As for the bullet points the first one means that you have to be able to talk about how it is used normally and then compare it to other fuels like ethanol and hydrogen (so you should make sure you know how these fuels are used)
The second bullet point basically needs you to put your answer into 3 sections, what is good about using plant materials, what is bad/disadvantages, and what are the risks.
I can't really give you any info on the content itself as I wouldn't have a clue, but that's what each point means - if that helps
Oh I'm on computer and I can see them but when I use a mobile device it doesn't show. I will keep trying to find a way to make sure you can see them