Ferrous Metals. The following are ferrous metals and the kind of uses to which they are usually put: 1  Mild Steel â Carbon content of 0.1 to 0.3% and Iron content of 99.7 â 99.9%. 2  Used for engineering purposes and in general, none specialised metal products.
Agkistrodon contortrix. Copperhead snakes are pit vipers or crotalids (family Crotalidae); poisonous snakes that are named for the two heat sensing pits used to locate prey that are positioned between the eyes and the nostrils. The genus Agkistrodon includes 10 species.
Rating Newest Oldest. Best Answer: There are numerous North American snakes which shake their tail if they feel threatened, most of which are harmless. Copperheads and cottonmouths are two venomous snakes which shake their tails like a rattlesnake. Some of the harmless snakes which do this are rat snakes and corn snakes, king snakes, gopher snakes and bull snakes, to name a few. Source(s): madsnakeman Â· 5 years ago.