Question

read the text.
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 brought wind technology to europe. the dutch developed large wind pumps to drain lakes and marshes in the rhine river delta. immigrants from
what is the main focus of the text?
the important role of government in promoting the use of wind energy
the use of wind energy from ancient times to modern day
the key reasons why wind energy is used more today than in the past

Explanation:

The text starts by mentioning the use of wind energy in ancient times (5000 BCE to propel boats, 200 BCE for water pumps and grain grinding). Then it talks about the spread of wind - energy usage in the eleventh century (Middle East, Europe, etc.). There is no mention of the government's role. Also, it doesn't focus on why wind energy is used more today. It mainly traces the use of wind energy from ancient times.

Answer:

the use of wind energy from ancient times to modern day