IELTS Book18 Test4

Answer:

The line graph illustrates the average monthly percentage changes in the prices of copper, nickel, and zinc during 2014.

Overall, the prices of all three metals fluctuated throughout the year. Nickel exhibited the most significant volatility, while copper and zinc experienced relatively stable trends. Towards the end of the year, all three metals showed an upward trend.

In January, nickel's price change was the highest at 6%, but it sharply declined to around -2% by May. It reached its lowest point in July at nearly -3% before recovering steadily to approximately 1% in December. Similarly, zinc started the year at just above 4% but gradually decreased to -1% in July. After this, it consistently increased, ending the year at nearly 2%.

Copper demonstrated the least variation, starting at about 3% in January and dropping steadily to -2% in July. Unlike nickel and zinc, copper remained relatively stable in the second half of the year, with only minor fluctuations around the 0% mark.