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This process is called eutrophication. Fertiliser is applied to plants because it contains a lot of ammonia and nitrates, which are needed to help a plant grow. However, if too much is applied, especially...

The format of this question shows that it is a quadratic, which we can solve by factorising. We have 3 methods by which we can do this:First, we need to manipulate the eq...

Start off by determining which unknowns have the same coefficient-      In this case it would be y as the coefficient of y is 1 in both equationsThen make both equations equal to y-      So 3x+y= 11 would...

When analysing an unseen poem, think about feelings. Ask yourself three questions: 1) How does the poet feel?2) Why does the poet feel this way? 3) How do you know they feel this way? For example...

Both osmosis and diffusion are processes that involve the movement of molecules from an area of high concentration to an area of low concentration. Neither process requires energy.
Osmosis and diffus...