Much of the cost of cooling your home can be saved by passive cooling techniques which don't require expensive retrofits or professional installations.Here are suggestions for free, or low-cost, ways to cool your home with less impact on the environment and your energy bill.ir conditioners can use up to 1/6th of U.S. electricity and, on hot summer days, consume 43% of the U.S. peak power load. According to the US Department of Energy, heating and cooling systems emit over a half billion tons of carbon dioxide into the atmosphere each year, adding to global warming.
A rectangular pyramid has 5 faces. How many triangles and how many rectangles form a rectangular pyramid?
A triangular pyramid has a 4 vertices. There are 4 vertices on a triangular pyramid.. A triangular pyramid is a pyramid made up of 4 triangles. The vertices are the points where the edges of the triangles meet. They are sometimes called corner points. There are 4 faces, therefore, there are 4 vertices. There are 6 edges, and if they are all equal in length, it would be called a tetrahedron. Source(s): http://wiki.answers.com/Q/How_many_verti...