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Cob has been used since the 17th century as a building material. It is made by mixing dry sand, sifted clay and water. A cob house is a house that is made from this material. A benefit of using this material, is that it is sustainable and only uses natural products.
Answer:
I think I would've really enjoyed this one when I was a kid. It's kind of a fiction/non-fiction hybrid. It's the story of Ryan O'Brian and his inability to stop composing poetry. It continues all day, and the reader is introduced to a variety of poetic forms. The story comes to a conclusion when Ryan's teacher gives the class a poetry-writing assignment... and Ryan finds that he's finally drawing a blank!
Explanation:
Mines can cause the ground to cave in.
