Ethanolâs Impact on Livestock Profitability. The economic environment for the livestock and poultry sector changed dramatically, starting in 2006. In a few months, despite a record 2005 U.S. corn crop, feed costs more than doubled and feed price variability increased sharply.
Hi, A cylinder has 3 faces - 2 circle ones and a rectangle (if you take the top and bottom off a tin can then cut the cylinder part on the seam and flatten it out you would get a rectangle). It has 2 edges and no vertices (no corners). Diane. Hi Stacy,
Air resistance can be lessened by adding a second exhaust valve to each cylinder (a car with 2 intake and 2 exhaust values has 4 valves per cylinder, which improves performance-when you hear a car ad tell you the car has 4 cylinders and 16 valves, what the ad is saying is that the engine has four valves per cylinder).