II. Read the passage and choose the correct answer for each question
Wind is a form of solar energy. Winds are caused by the uneven heating of the atmosphere by the sun. Wind flow patterns are changed by the earth’s terrain, bodies of water, and vegetative cover. This wind flow, or motion energy, when “harvested” by modern wind turbines, can be used to generate electricity.
Wind turbines are available in a variety of sizes, and therefore power ratings. The largest machine has blades that span more than the length of a football field, stands 20 building stories high, and produces enough electricity to power 1,400 homes. A small home-sized wind machine has rotors between 8 and 25 feet in diameter and stands upwards of 30 feet, and can supply the power needs of an all-electric home or small business, utilityscale turbines range in size from 50 to 750 kilowatts. Single small turbines, below 50 kilowatts, are used for homes, telecommunications dishes, or water pumping.
1. What is the reason for the existence of wind?
A. atmosphere heated unevenly B. wind flow
C. motion energy D. wind turbines
2. Which of the following is NOT mentioned as a factor affecting the wind direction?
A. earth’s terrain B. bodies of water
C. vegetative cover D. the Sun
3. The word “variety” is closest in meaning with_________.
A. capacity B. popularity C. diversity D. minority
4. What is the height of the largest wind turbines?
A. as tall as a 20 story building B. between 8 and 25 feet
C. 30 feet D. 50 feet
5. A small home-sized wind machine can produce enough power for_________ .
A. 20 buildings B. a small business
C. 400 homes D. a football field

Question

II. Read the passage and choose the correct answer for each question 
    Wind is a form of solar energy. Winds are caused by the uneven heating of the atmosphere by the sun. Wind flow patterns are changed by the earth’s terrain, bodies of water, and vegetative cover. This wind flow, or motion energy, when “harvested” by modern wind turbines, can be used to generate electricity.
	 Wind turbines are available in a variety of sizes, and therefore power ratings. The largest machine has blades that span more than the length of a football field, stands 20 building stories high, and produces enough electricity to power 1,400 homes. A small home-sized wind machine has rotors between 8 and 25 feet in diameter and stands upwards of 30 feet, and can supply the power needs of an all-electric home or small business, utilityscale turbines range in size from 50 to 750 kilowatts. Single small turbines, below 50 kilowatts, are used for homes, telecommunications dishes, or water pumping.
1. What is the reason for the existence of wind?
A. atmosphere heated unevenly	B. wind flow
C. motion energy		D. wind turbines
2. Which of the following is NOT mentioned as a factor affecting the wind direction?
A. earth’s terrain		B. bodies of water
C. vegetative cover		D. the Sun
3. The word “variety” is closest in meaning with_________.
A. capacity	B. popularity	C. diversity	D. minority
4. What is the height of the largest wind turbines?
A. as tall as a 20 story building	B. between 8 and 25 feet
C. 30 feet			D. 50 feet
5. A small home-sized wind machine can produce enough power for_________	.
A. 20 buildings		B. a small business
C. 400 homes		D. a football field

Accepted Answer

1. What is the reason for the existence of wind?
A. atmosphere heated unevenly

2. Which of the following is NOT mentioned as a factor affecting the wind direction?
D. the Sun

3. The word “variety” is closest in meaning with_________.
C. diversity

4. What is the height of the largest wind turbines?
A. as tall as a 20 story building

5. A small home-sized wind machine can produce enough power for_________.
C. 400 homes

II. Read the passage and choose the correct answer for each question Wind is a form of solar energy. Winds are caused by the uneven heating of the atmosphere by the sun. Wind flow patterns are change...