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Why should we use biodiesel rather than regular petroleum diesel?

The combustion of biodiesel produces less carbon dioxide, sulfur dioxide and particulates than that of regular diesel. This causes less global warming from the greenhuse effect and less sulfur dioxide pollut...
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Answered by Bradley M. • Chemistry tutor
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Which of these DNA mutations is likely to have the greatest effect on the structure of the encoded protein? Justify your answer. •Single base substitution •15 bases base deletion •Insertion of 2 bases

The most serious of these mutations will be the insertion of 2 bases. Becasue the genetic code is read in triplets, a 2 base insetion will alter the reading frame of the code causing a frameshift mutation me...
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Answered by Emma M. • Biology tutor
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Factorise and solve x^2 - 8x + 15 = 0.

Whenever faced with a quadratic equation in the form of AX^2 + BX + C = 0, the first thing you do is factorise it, which will look something like this: (X )(X ) = 0.You can see from this that when you multip...
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Answered by Zarmala N. • Maths tutor
3796 Views

Explain the formation of different types of Moraine (7 marks)

A moraine is any material transported and deposited by a glacier, there are many different types of moraine. One type of moraine is medial moraine which is formed where two glaciers meet depositing glacial d...
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Answered by Oliver C. • Geography tutor
21107 Views

How does a firm maximise revenue (linear revenue curves)?

Total revenue is maximised where the downward sloping marginal revenue curve cuts the x-axis. This makes sense when we realise that 'marginal' means 'of an additional unit'. So, total revenue is maximised wh...
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Answered by Oliver B. • Economics tutor
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