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This is done by a process called cracking.

Cracking is the process by which the crude oil is heated up in the oil refineries to separate the oil into separate molecules/hydrocarbons.

This is a common question as we are often taught to differentiate by simply being told how to do the calculation, but not what it is we're really doing.
The concept
Diffe...

Convert 0.25 into a fraction where 20 is the denominator as there are 20 balls in total in the bag. 0.25 is the same as 1/4 and to convert this to 20 as the denominator multiply both the top and the bo...

Revenge tragedies were popular in Elizabethan theatre for their violent action and on-stage spectacle of bloody justice. Hamlet uses a medieval Danish revenge story as a framework to comment on t...

The difference between avoir and être is a grammatical distinction that often confuses students, but is absolutely necessary to know when forming the perfect tense, as well as other more complex tenses...