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...social benefit and also creates so many jobs, because each house, you have a team of workers going in to do the work, you can’t do it with big machines like building a motorway. JS: Yeah, I mean, it is very interesting, I live in a block of flats in central London and frankly everybody has their separate electricity and gas supplier within that building, so there are...

...social life. There are many mature adult males and rivalry can lead to conflict and fighting between individuals, using a spectacular array of horns and antlers, as you will have seen towards the end of the programme. However, since so many plant predators do live in herds, on balance it must be beneficial. If you are studying the next course in this series, you will be...

...interactive and allows you to change the wall construction in the third layer giving three options: a solid brick wall two bricks thick a cavity wall a solid brick wall three bricks thick. The overall calculated U-value appears at the bottom. Which of the following gives the lower U-value? i.adding a cavity to a two-brick solid wall or ii.increasing the thickness of the...