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How to answer an extended answer question in an exam such as 'Describe the process of eutrophication (6 marks)'

When answering a 6 mark question such as this you need to ensure you are using the correct scientific terminology and checking off all the key marking points in order to score highly. In this example there a...
AP
Answered by Avni P. • Biology tutor
4379 Views

Explain price elasticity of demand

Price elasticity of demand (PED) - the percentage change in quantity demanded, divided by the percentage change in price There are several factors that influence the elasticity of demand for a given product:...
MS
Answered by Maria S. • Economics tutor
1631 Views

Explain human factors contributing to urban growth

Push factors are those that cause people to leave a country, for example conflict or poor jobs opportunities. Pull factors are things that attract people to move in, such as job opportunities, a good educati...
HH
Answered by Harley H. • Geography tutor
5251 Views

Solve: x^2 – x – 12 = 0

Method 1: Solve by inspection. Demonstrate that quadratic equations can often be written in the form (x+a)(a+b) = 0. Explain that possible solutions arise as a result of either (x+a) or (x+b) =0. Note that a...
NA
Answered by Nikesh A. • Maths tutor
3429 Views

Describe the structure of arteries, veins and capillaries and explain its relation to function

Arteries Arteries carry blood away from the heart. They have a thick muscular wall with a small lumen. The thick muscular walls withstands the high pressure of the blood flowing from the heart. Veins The vei...
LD
Answered by Lucy D. • Biology tutor
5675 Views