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The term "superpower" has been attributed to countries which have significant influence and a powerful global presence. A "superpower" nation can be identified by the four pillars of p...
The blood capillaries surrounding the alveoli of the lungs provide them with a rich supply of flowing blood. This means that the oxygen depleted blood returning from the body picks up oxygen from inside t...
I always prioritise having a really bulletproof, strong structure - especially in the time constraints of a exam. I like to come up with my subtitles before I start writing, both to make sure I cover all ...
The voltage (or potential difference) between two points is the cost in energy to move a unit of positive charge from the point of lower potential to the point of higher potentia...
First, let's start by labelling the equations. We can call x2+2y=9 equation 1 and y=x+3 equation 2. Rearrange equation 2 to give us x = y-3. We can then substitute this back into equation 1. So...
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