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Recycling (a) The graph shows some materials recycled in 2004 and 2010 - Edexcel - GCSE Biology - Question 2 - 2012 - Paper 1

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Recycling (a) The graph shows some materials recycled in 2004 and 2010. (i) Calculate the increase in the mass of paper recycled between 2004 and 2010. answer = _... show full transcript

Worked Solution & Example Answer:Recycling (a) The graph shows some materials recycled in 2004 and 2010 - Edexcel - GCSE Biology - Question 2 - 2012 - Paper 1

Step 1

Calculate the increase in the mass of paper recycled between 2004 and 2010.

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Answer

To calculate the increase in the mass of paper recycled between 2004 and 2010, we need to look at the values from the bar graph. In 2004, the mass of paper recycled is 3.0 million tonnes and in 2010, it is 2.5 million tonnes. Therefore, the increase can be calculated as:

Increase = Mass in 2010 - Mass in 2004 = 2.5 - 3.0 = -0.5 million tonnes

So, the answer is 0.5 million tonnes, indicating a decrease instead of an increase.

Step 2

Complete the sentence by putting a cross (X) in the box next to your answer.

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Answer

From the graph, the material that is recycled the least is:

  • A glass
  • B paper
  • C plastic
  • D wood

The correct answer is A glass, as it has the lowest value among the materials shown.

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