barley: barley: a tall plant like grass with long, straight
chickpea: a hard, pale brown, round bean that can be cooked and eaten
Part of speech: Noun. Chickenpeas are used to make hummus and falafel.
coal: a hard, black substance that is dug from the earth in lumps and used as a fuel, or a single piece of this substance
part of speech: noun. Some of those schools still use coal for their heating.
crude oil: oil from underground that has not yet been made into other products
Part Of speech: noun. the plant processes 405,000 barrles of crude oil each day