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Controlling high blood glucoseBlood glucose levels are important to control because glucose is our key source of energy in respiration. When blood glucose levels are too high, this...

Good question! This is exactly the kind of question that could come up on the GCSE non-calculator paper. I think the main thing that makes this question tricky is sifting out the information and figuring ...

Firstly, let's have a look through the question to find the key words and write down any equations you might need. Perpendicular means the two lines cross and meet at a right angle, we also have an equati...

Public goods are non-excludable and non-rival - i.e. you cannot be stopped from consuming the good and this does not affect others' consumption
Externalities are benefits/costs to a third party outsi...

Developed countries: more urbanised - 80% of USA population in 2%Developing: growing at a faster rate - Rwanda fastest urbanisation rate in the world: 9%
Leading to problems with waste management, re...