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Crude oil is a fossil fuel - what is a fossil fuel and how is crude oil separated into its fractions?

A fossil fuel is a substance like coal, oil, or natural gas formed from decayed plant or animal remains which can be burned to produce energy and power. Crude oil is separated by fractional distillation - fi...
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Answered by Ella S. • Chemistry tutor
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Atalanta erat filia regis Schoenei. haec puella, quae celerrime currere poterat, in mediis silvis habitabat. olim rex Atalantam rogavit ut maritum inveniret.

The easiest way to go about answering the early comprehension questions is to attempt to just translate the passage and if you get stuck to make an educated guess based on what you can understand and what yo...
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Answered by Moses R. • Latin tutor
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y=2x+5 and y-x=8. Find x and y.

The expression (2x+5) has the same value as y, and so we can use (2x+5) instead of y in the second equation. This means that we are now just dealing with one variable (x) instead of two (x and y). If we make...
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Answered by Smriti R. • Maths tutor
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Find the length of a side of the triangle (Pythagoras' Theorem) Two sides are of length 3cm and 4cm, find the length of the Hypotenuse.

a 2 = 3 2 = 9, b 2 = 4 2 = 16, a 2 + b 2 = 3 2 + 4 2 = 25, c 2 = 25, c = 5
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Answered by Andrew D. • Maths tutor
3392 Views

Give one example of secondary research and explain 2 of its disadvantages.

Market research involves gathering data about customers, competitors and market trends. Primary - New research/data Secondary - Already available As secondary research is information that is already availabl...
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