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: it can help us tackle urban environmental challenges such as stormwater management, pollution reduction, and climate resiliency. Nature also supports the health and well-being of the people that live in cities, offering benefits like stress reduction and opportunities for social connection.
Explanation:
Habitat climate,warmer temperatures and increased radiation Hope this helps
Answer:
someone played it so people go intrested
Explanation:
