Final answer:
The decrease in useable energy is influenced by geographical extent, climate, improvements in energy efficiency, and societal changes affecting energy usage.
Step-by-step explanation:
Factors Responsible for Decreased Useable Energy
The decrease in useable energy can be attributed to various factors which impact both our natural resources and the way we consume energy in society. Firstly, geographical extent plays a role; countries with large land masses, such as Russia, Canada, and the U.S., require more energy for transportation. Secondly, climate greatly affects energy usage; colder countries need more energy for heating. Third, efficiency improvements in technology, like more fuel-efficient cars and better-insulated buildings, can decrease overall energy consumption. Lastly, societal changes, such as a reduction in oil usage due to economic slowdowns or disruptions in oil-pumping schedules due to conflicts, also impact energy use. Each of these factors contributes to the global dynamics of energy consumption and conservation.