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.
earthquakes along the plate margin. This is also referred to as a collision boundary. Earthquakes occur along the margin as a result of the plates grinding together, but no major landforms are made. As the plates move lava comes up and cools as it meets the water. This causes new crust to be formed. Small volcanoes can also be formed. As the 2 plates meet, the ocean plate sinks under the continental plate because it is denser. The oceanic plate melts, and composite volcanoes are formed along the margin. Earthquakes can also occur here because the 2 plates are clashing. A trench may also form at the margin. Earthquakes occur along the margin as a result of the plates grinding together, but no major landforms are made. As the plates move apart lava erupts into the ocean cooling and forming new crust. This can