Question

1 although the use of wind energy has flourished in the u.s. in recent years, people all over the world have been harnessing the power of wind for thousands of years. as early as 5000 bce, wind energy was used to propel boats along the nile river. by 200 bce, simple wind - powered water pumps were used in china, and windmills with woven - reed blades were grinding grain in persia and the rest of the middle east. 2 new ways to use wind energy eventually spread around the world. by the eleventh century, people in the middle east were using wind pumps and windmills extensively for food production. merchants and returning crusaders what is the main focus of the text? the use of wind energy from ancient times to modern day the important role of government in promoting the use of wind energy the key reasons why wind energy is used more today than in the past

Explanation:

The text begins by stating that wind energy use has a long history (since 5000 BCE for propelling boats, 200 BCE for water pumps and grain - grinding windmills). Then it mentions the spread of wind - energy uses (by the 11th century in the Middle East for food production). There is no mention of government promotion or reasons for more modern use. The focus is on the historical timeline of wind - energy use.

Answer:

the use of wind energy from ancient times to modern day