2. Part A.1. If you have a properly adjusted hot flame, which is pale blue with three distinct cones, what is observed if the air-control valve is slightly closed? Explain. 3.A burning candle produces a luminous flame. What is the fuel for the burning candle? Why is the flame luminous? - The fuel for the burning candle is oxygen. With an insufficient supply of oxygen, small carbon particles are produced, which, when heated to incandescence, produce a yellow, luminous flame. The combustion products may, in addition to carbon dioxide and water, include carbon monoxide.
Most earthquakes occur at the boundaries of tectonic plates. And i think Most earthquakes occur along the edge of the oceanic and continental plates. The earth's crust (the ou â¦ ter layer of the planet) is made up of several pieces, called plates.
To be more specific, most of the earthquake happens at the tectonic plates edgesâ boundary yet it can even occur in the middle area. Faults causing the earthquake can actually be located over the edges of the tectonic plate. Basically, there are different faults that cause an earthquake. They are reverse fault, strike slip fault and normal fault. The normal fault occurs following rock slides downward past other rock of block.