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Commercial space, 1250 square feet. HVAC system is entirely 8 and 6 inch insulated flex duct with galvanized steel diffusers. plenums, and tees. Ceilings are 10 feet high and the flex duct goes over the top of 4 walls that are steel studs and gypsum board. What, if any, are the requirements for fire dampers (how many, where at, etc.)?

I'm buying a new bed. Here it is:http://www.moreplatformbeds.com/Skyline-Double-Tufted-Button-Bed-79XBED.htm I'd like to practice Feng Sui to improve my life, but my bed is Earth, metal, and fire. I've read that metal destroys Earth, Earth dampers fire, and fire burns wood. Now I don't know what to do...

I have a year 11 geography exam tomorrow, it is a unseen essay. We were given a few sources like articles, diagrams etc. I am usually a straight A student. We were told by our teacher (who is sooooo fun), that we cannot study for this exam. All the stuff we learned this term, is not really on the exam. I don't understand a few of the sources. can anyone help me? The sources are: - a diagram of the 'ring of fire' with tectonic plates - a graph on 'deck displacement of non-isolated bridge', and 'deck displacement of isolated bridge'. - diagram of viscous fluid dampers - diagram of base isolators - diagram of focus and epicentre of an earthquake - diagram of a fixed bridge and an isolated bridge can anyone explain (briefly) what these things are? The more i know/understand about these things, the better i will do on my essay tomorrow. :D thankyou all so much! :D xo p.s. i love geography, and i kind-of understand these things, i just need a little help. Thankyou