Common atmospheric pollutants and their sources

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Question 5
Medium

This question is about fuels and energy.

Figure 1 shows the percentage of electricity generated in a country between 2010 and 2020 using:

  • coal
  • wind energy

A dual bar chart representing the percentage of electricity generated in a country. The x-axis shows years: 2010, 2012, 2014, 2016, 2018, 2020. The y-axis shows the percentage of electricity generated (%), ranging from 0 to 4.5% with gridlines every 0.1%. For each year, there are two bars side by side: a white bar for 'Coal' and a black bar for 'Wind energy'. In 2010, Coal is 2.5% and Wind is 0.2%. In 2012, Coal is 2.8% and Wind is 0.5%. In 2014, Coal is 2.0% and Wind is 1.1%. In 2016, Coal is 1.5% and Wind is 1.8%. In 2018, Coal is 1.2% and Wind is 2.6%. In 2020, Coal is 0.8% and Wind is 3.5%.

a.

Describe the changes in the percentage of electricity generated in the country between 2010 and 2020 using:

  • coal
  • wind energy

Use data from Figure 1 in your answer.

[3]
b.

Coal contains carbon and some sulfur. Explain the environmental effects of releasing these products of combustion into the atmosphere.

[4]
c.

Suggest one reason why using wind energy is a more sustainable way of generating electricity than burning coal.

[1]
d.

Wind energy may not be able to replace the generation of electricity from fossil fuels completely. Suggest two reasons why.

[2]

Common atmospheric pollutants and their sources Questions

  1. GCSE
  2. /Chemistry
  3. /Common atmospheric pollutants and their sources