The graph shows a forest's yearly regrowth and yearly felling. In which years is the forest being used within its carrying capacity? A graph of a forest's yearly regrowth and yearly felling, in thousand cubic metres. Regrowth is a flat line at 60. Felling rises in a straight line: 30 in year 0, 40 in year 2, 50 in year 4, 60 in year 6, 70 in year 8 and 80 in year 10. The two meet at point E, in year 6.

The graph shows a forest's yearly regrowth…

The graph shows a forest's yearly regrowth and yearly felling.

HardOriginal question

The graph shows a forest's yearly regrowth and yearly felling. In which years is the forest being used within its carrying capacity?

Years 0 to 6Correct answerYour answerYears 6 to 10Correct answerYour answerOnly year 10Correct answerYour answerIn no yearCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

Up to year 6, felling (30 rising to 60) is at or below regrowth (60), so the forest stock does not shrink.
After year 6, felling exceeds regrowth and the forest is being used up.

Ten questions from Environment & Sustainable Development, at your own pace.

Ten questions from Environment & Sustainable Development, at your own pace.