I think it's A but here's an explanation anyway: as you heat the crude oil, the different hydrocarbons, having different boiling points, boil and evaporate up the column. Those with lower boiling points, shorter in chain length, will condense nearer the top of the fractional distillation column. Those that are more viscous, larger in chain size, will have high boiling points, so will evaporate last and condense lower down in the column. Therefore, you achieve all the different oils / materials (oil, petrol, gasoline, tar etc etc). I hope this helps. If not, then a good website to use is 'BBC bitesize, fractional distillation'.
Answer:
Explanation:
The three main rock types are igneous, metamorphic and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
<u>Answer:</u>
<em>The investigation of surface landforms, procedures and scene advancement of the Earth. </em>
<em>1. Interdisciplinary Study: </em>traverse with logical orders of <em>sedimentology, soil science, topography, climatology, hydrology, glaciology, structural designing and volcanology. </em>
Geomorphology is the investigation of landforms and scenes on Earth and different planets, and the procedures that shape them.
This order is essentially worried about<em> the disintegration and testimony of shake and silt by wind and water,</em> yet in addition incorporates the production of geography through tectonics.
