What does the graph shown suggest about the pace at which carbon dioxide is building up?

Question 23

HardOriginal question

What does the graph shown suggest about the pace at which carbon dioxide is building up?

Options for question 23

AOption AIt is rising more slowly each decadeCorrect answerYour answerBOption BIt is rising faster each decadeCorrect answerYour answerCOption CIt rose and then fell backCorrect answerYour answerDOption DIt has stayed steady since 1960Correct answerYour answer

Check

Show the answer and explanation

✓CorrectNot quiteAnswer B

Correct answer: B

Explanation

1. 01

   Rise per decade: 9, 13, 15, 16, 20, 24 ppm, getting larger each time.

Concept

Reading a CO₂ graph

Typical timeTypical

100 s

Your timeYours

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The rule this testsGlobal warming and ozone depletion→

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