The given bar chart illustrates the distribution of energy production from five different sources in Country X in 1990 and 2020. These sources include coal, natural gas, nuclear energy, renewable energy, and oil.
In 1990, coal and oil were the dominant sources of energy, each accounting for around 35 percent of total production. In contrast, natural gas, nuclear energy, and renewable energy made up smaller proportions, all below 15 percent. This indicates that Country X was heavily dependent on non-renewable resources during this period.
By 2020, however, the situation had changed noticeably. Energy production became more evenly distributed among the five sources, with each representing around or more than 15 percent of the total. In particular, natural gas and renewable energy increased dramatically, each contributing about 25 percent of total production. Meanwhile, the shares of coal and oil declined substantially.
Overall, the chart highlights a significant transformation in Country X’s energy mix over three decades, showing a shift from reliance on non-renewable sources such as coal and oil toward cleaner and more sustainable forms of energy.