IELTS Writing Task 1 Sample Answer

Sample Answer 1

The diagram illustrates the sources of nitrogen and its concentration in the groundwater of a coastal city.

Overall, nitrogen enters the groundwater through various mechanisms and is subsequently transported to the sea, where it undergoes oxidation by lightning or fixation in the ground through plants and rainfall. This cycle then repeats.

Sample Answer 2

Band 7+

                                  The diagram depicts the source of nitrogen and the extent to which it is concentrated in the groundwater of a coastal city. Overall, we can see that nitrogen enters groundwater via a variety of mechanisms and is subsequently carried to the sea, where it is oxidised by lightning or fixed in the ground by plants and rains. Following that, the cycle is repeated.

                             Notably, there are numerous man-made sources of nitrogen. One is gardens, where fertilisers and household liquids seep into the earth, and the other is industry, where nitrogen leaks from stalon tanks. Finally, trash disposal in landfills may result in an increase in nitrogen entering the groundwater. Nitrogen concentrations are extremely high in these three places.

                                    The groundwater naturally flows toward the sea and is dumped into it. Some nitrogen is absorbed by soil particles along the route, while some is released near the coast by natural denitrification. Levels tend to fall towards the saltwater interface and between areas of high nitrogen concentration caused by industry and waste dumping.

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