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This is where water enters the cracks on rocks and then during time of decreased temperatures the water freezes. As it freezes, the water expands which places a lot of pressure on the rocks around it. Thi...

Amount of paint needed:

White paint = (18 ÷ 5) × 3 = 10.8 litres

Blue paint = (18 ÷ 5) × 2 = 7.2 litres 

Cost of white paint = 10.8 x £2.80 = £30.24

Cost of blue paint = 7.2 x ...

First of all Henry VIII wanted a son to continue his line and create a dynasty. He previously had only had one daughter (Princess Mary) to his now old wife Catherine of Aragon. As she was past child beari...

25(5x-2)^4

Large surface area: Branches off, starting with bronchioles until microscopic in size with air filled sacs called alveoli. The alveoli also have massive capiliary networks surrounding them so there is a b...