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Understanding meaning

Fluctuations come from the word fluctuate. Fluctuations are changes or movements that go up and down a lot.

For example:

In the south, there are many fluctuations in the weather during the summer. In the mornings, it is sunny and hot, it rains in the afternoons, and at night the temperatures can drop to below 10 degrees Celsius.

The fluctuating levels of oil prices make it very difficult for airlines to know how much to charge for air tickets.

Which answers below are closest in meaning to fluctuations? Choose the 3 correct answers.

levels keep going up and down, up and down . . .

levels of something stay the same

something keeps changing in opposite directions

movements in different directions