A) A type of musical instrument played by wind
B) A type of bird species that can fly long distances
C) A device that converts wind energy into mechanical power
D) A device used to measure wind speed

A) United States
B) China
C) Germany
D) Denmark

A) The total number of wind turbines in a specific area
B) The speed at which wind travels through a turbine
C) The ratio of actual energy output to the maximum possible output over a period of time
D) The weight distribution of a wind turbine

A) To increase the rotational speed of the generator
B) To reduce noise emitted by the turbine
C) To store excess energy
D) To adjust the pitch of the rotor blades

A) VAWT
B) AHWT
C) TAWT
D) HAWT

A) Iowa
B) Texas
C) Oklahoma
D) California

A) Shadow flicker
B) Wind disturbance
C) Sun glare
D) Noise pollution

A) Solar power
B) Hydropower
C) Biomass energy
D) Geothermal energy

A) To control wind direction
B) To speed up the rotation of wind turbines
C) To limit the number of installed wind turbines
D) To predict electricity generation from wind farms