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'.
The correct answer is - A. Electricity.
Russia is a country that has an abundance of natural resources, and it uses them in order to produce its own electricity, and does it multiple ways. As one of the countries that has developed nuclear programs from long time ago, Russia has also used this technology in order to build nuclear reactors for the production of electricity. Also, the country has numerous rivers that are very large in every aspect, so lots of hydroelectric capacities have been built in the dams for production of electricity. The fossil fuels are also used on a big scale, and the usage of coal and mazut in the generators for producing electricity is still big.
Bro just do it yourself it’s not easy to explain .. it’s a chart bro
<h2>Answer: D. Rayleigh wave
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Rayleigh waves are a type of surface acoustic wave that causes particles on the surface of solids to travel along an elliptical path in the vertical plane that contains the direction of wave propagation.
These waves include longitudinal (P wave) and transverse (S wave) movements whose amplitude decreases exponentially as the distance from the surface increases.
This means Rayleigh waves are generated by the interference between the P and S waves on the surface of the Earth.
Answer:
1. distance above sea level.
2. Deep narrow valley with side steeps.
3. A line that separates the flow of a river
4. An area of land that is surround by higher land and may be drained by a river.
5. A narrow passage
6. The land deposited at the mouth of a river
7. The process by Which the soil is prepared and used to grow crops
Explanation:
