Box vents are not mechanical vents and work better when used with soffit ventilation. They're designed to work with open attics and do not need to be placed close to roof ridges to work optimally. They are also known as low profile vents because they are static and installed over a hole cut into the roof.
Stone Mountain is made of igneous granite which is composed of quartz, feldspar, microcline and muscovite, with smaller amounts of biotite and tourmaline. Embedded in the gran â¦ ite are xenoliths or pieces of foreign rocks entrained in the magma. 13 people found this useful. T.E. Woodwose.
The faster magma cools, the smaller the mineral crystals form. __True______ 18. Granite is an igneous rock made up of the minerals quartz, mica, feldspar, and hornblende. ___sediment___ 19. The small particles of rock or the remains of living things that make up. sedimentary rocks are called cement.