What was often used as a substitute for fossil fuels in Egypt,despite being less efficient? Solar power Wind energy Hydroelectric power Animal labor

The correct answer is: Wind energy.<br /><br />Wind energy was often used as a substitute for fossil fuels in ancient Egypt, despite being less efficient. Windmills were used to grind grain and pump water, utilizing the wind as a source of mechanical power. While wind energy was not as efficient as fossil fuels, it was a renewable and sustainable alternative that ancient Egyptians utilized for various purposes.