The pie charts indicate units of electricity produced by fuel sources between the time period of 1980 and 2000 both in Australia and France.
...from 50 units in 1980 to 130 units in 2000. W hile the figure---Don't forget to leave a space between sentences.--- of hydro power saw a increase, rising to 36 units by the year 2000, those of natural gas and oil in contrast experienced a dramatic drop, reducing by 90% and 80% in 2000 respectively.
The situation is extremely different in France: electricity
production was mainly produced by nuclear power during the two decades, increasing by 111 units.
...Australia tends to use coal, and France prefers nuclear power based on its advanced technology in this field.
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