سؤال قراءة ستيب محلول — الاستنتاج (تدريب 6225)

Passage A (1) Wind power is an alternative energy source. This means that the power of the wind can be used in place of other energy sources such as coal, oil, and nuclear reactions. Wind can be used to produce electricity that heats homes and lights streets and buildings. (2) Wind power is harnessed by a machine called a wind turbine. Wind turbines are all towers topped with blades. The blades are connected to a vertical shaft, or rod. When wind causes the blades to spin, they tum the shaft. The tuning shaft provides power to a machine called a generator, which produces electricity. A group of wind turbines, called a wind farm, can be used to provide electricity to a community. Small turbines provide power for individual homes. (3) Wind turbines used to be called winds. The earliest known windmills were built more than 1,000 years ago. People used them to grind grin. The Dutch used Windmills to pump water out of low-lying areas near the sea. Passage B (1)Wind power is cost-effective. Land-based utility-scale wind is one of the lowest priced energy sources available today, costing 1-2 cents per kilowatt-hour to the production tax credit. Because the electricity from wind farms is sold at a fixed price over a long period of time (e.g. 20+ years) and its fuel is free, wind energy mitigates the price uncertainty that fuel costs add to traditional sources of energy. (2) Wind creates jobs. The US wind sector employs more than 100.000 work, and wind turbine tech n is one of the fastest growing American jobs. According to the Wind Vision Report wind has the potential to Scout more than 600.000 job in manufacturing. installation, maintenance, and supporting services by 2050. (3) It’s a clean fuel source. Wind energy doesn’t pollute the air like power plants that rely on combustion of fossil fuels, such as con or a s, which emit particulate matter, nitrogen oxides, and sulfur dioxide -causing In health problems and economic damages. Wind Turbines don’t produce atmospheric emissions that cause acid rain. smog, or greenhouse gases. What do Passages A and B say about wind?