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Explain why it is difficult to measure development. (10 marks)

Due to the complexities of the world it is very difficult to measure development. When measuring development you have to take into account many different factors that contribute to the shape and formation of...
OC
Answered by Olivia C. • Geography tutor
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Using the nitrogen cycle, explain how nitrogen from the atmosphere is converted into nitrates

4 main processes: ammonification nitrification nitrogen fixation denitrification NITROGEN FIXATION: the process by which N2 gas converted --> nitrogen containing compounds (e.g. Ammonia) the most importan...
NZ
Answered by Nawal Z. • Biology tutor
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What role does gut flora play and how does it work?

Gut flora is an example of good bacteria within our bodies that we need to survive. The average human has around 1.5kg of glut flora in there gastro-intenstinal tract. The gastrointenstinal tract (GIT) consi...
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Answered by Ermira K. • Biology tutor
3571 Views

Integrate the following between 0 and 1: (x + 2)^3 dx

Initially, we must recognise the simplest way to integrate this equation is using the 'reverse chain rule' method. This means raising the value of the power, in this case '3', by one, and then dividing by th...
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Answered by Will E. • Maths tutor
3848 Views

How do you sketch the graph of y=(x-1)/(x+1)?

The first step in tackling this problem is to find the intersection points of the graph with the x and y axes. The y-intercept can be found by substituting x=0 into the function, so y=(0-1)/(0+1)=-1 and the ...
LG
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