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Human influences on the environment

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Question 31

In a certain country, exposure to organic dust in agricultural settings resulted in 210,000 cases of occupational lung diseases in a single year. The graph below shows the number of these occupational cases caused specifically by breathing in dust from moldy hay, grain dust, and poultry feathers.

A bar chart showing 'Number of cases in thousands' on the vertical y-axis, which ranges from 0 to 60 with gridlines every 2 units. The horizontal x-axis has three categories: 'moldy hay', 'grain dust', and 'poultry feathers'. The height of the bar for 'moldy hay' is at 38 (representing 38,000), the bar for 'grain dust' is at 26 (representing 26,000), and the bar for 'poultry feathers' is at 44 (representing 44,000).

a.

Calculate the number of occupational lung disease cases caused by breathing in agricultural organic dusts other than moldy hay, grain dust, or poultry feathers.

[3]
b.

Give two conclusions that can be made from the data in the graph.

[2]

Human influences on the environment Questions

  1. IGCSE
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  3. /Human influences on the environment