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:
Kevin would be able to fill 1 2lb container with 18ozs being left over
Explanation:
If Kevin is filling 2lb containers (1lb = 16oz) so he would have 1 filled container and then 18oz left over for another bag
Answer:
The answer is a) oil
Explanation:
Oil, especially in these areas, are abundant. In the past, these areas became wealthy because of oil.
Answer: Twice
Explanation: With quadratic functions they are usually represented by parabolas and they can cross the x axis only once or twice :)
The tool that would be most useful to him would be a seismometer. It is an<span> instrument that measure motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions. Hope this answers the question. Have a nice day. </span>
