The graph below shows the average muscle change in the prices of copper, nickel, and zinc in 2014.

The chart compares the mutation fee of copper, zinc, and nickel

during

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in

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2014.

Overall

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, the nickel quotation showed gradual fluctuations over the year,

while

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copper and zinc prices

kept

Verb problem

remained

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unchanged level. As the graph reveals, the price of Nickel altered at 6% in January, followed by

a

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an

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immense decrease to around 1% in March,

then

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it declined slightly

at

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to

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0.5% after

plunged

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plunging

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significantly to approximately - 3% in June.

This

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metal's figure went up to nearly 1% in December. Regarding copper's monthly cost, it started with 2% in January,

then

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slowly dropped to roughly - 1.5% in May.

Following

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this

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, Sharp fluctuated with 0.5% in October, after

reached

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reaching

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a peak at 1.5% in the month of December.

By contrast

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,

expense

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the expense

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of Zinc grew to about 3% in February, after

sharp

Correct article usage

a sharp

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fell

Replace the word

fall

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to about - 1.1% in June. Before witnessing steady growth to - 1.5% and - 1% in July and October, respectively,

then

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Sharp

rised

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rose

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rapidly to exactly 2% in December.