Answer: When I felt my wings were ready, slid from our home branch as smoothly as a snake through the grass.
Explanation: This sentence is comparing two different things to each other and it uses the word as. A simile must have the word like or as in it, otherwise it is a metaphor.
The fuel which may be an option that fuel cells can run on would be ETHANOL. It is so because of the formula ethanol has (C2H5OH). Hydrogen is used in this chemical reaction (catalyst) so it couldn´t be an option. Uranium is a heavy metal, difficult to be split in smaller pieces and not appropriate in this type of reaction. Crude oil does not serve for this kind of electrolitic reaction, which happens in water.
I think its Hot-house A compound adjective is a compound word made of 2 adjectives joined together!
