Question

data sources: our world in data and bp statistical review of world energy
use the data to complete the statement.
between 1965 and 2015, people obtained ______ of their energy from fossil fuels.
about one - fifth at least four - fifths

Explanation:

To determine the correct answer, we consider real - world energy consumption data. Historically, fossil fuels (like coal, oil, and natural gas) have been the dominant source of energy globally. The fraction "at least four - fifths" ($\frac{4}{5}$ or 80%) aligns with the fact that fossil fuels have provided a large majority of the world's energy during the period from 1965 to 2015. In contrast, "about one - fifth" ($\frac{1}{5}$ or 20%) is too small to represent the significant share of energy that fossil fuels have contributed.

Answer:

at least four - fifths