Select the correct answer.Read this passage:Americans spend about $40 billion annually to air-condition buildings. Energy-efficient roof products reflect more of the Sun's rays. As a result, they can lower roof surface temperature by up to 50°F, which decreases the amount of heat transferred into a building. In this way, energy-efficient roof products can help reduce the amount of air-conditioning needed in buildings. Before selecting an energy-efficient roof product, consumers should use the Department of Energy's Cool Roof Calculator. This online tool helps to calculate the energy savings that can be achieved with reflective roofing. Such savings are highly dependent on several factors, including the building’s design and location.What conclusion can a technical writer draw based on this information? A. Energy-efficient roof products reflect the Sun’s rays and reduce the amount of air-conditioning that buildings need. B. The amount of money that energy-efficient roof products can save depends on each individual building. C. The roofs of all buildings will be significantly cooler if they are made with energy-efficient products. D. Energy-efficient roof products are guaranteed to lower the energy bill for any building. E. Energy-efficient products can lead to a decrease in the manufacture of air-conditioning units.

Which of the following is a key factor in reducing energy consumption in a building?a) Using reflective roofing materialsb) Having more windows for natural lightc) Keeping exterior doors opend) Installing single-pane windows

Which building feature is responsible for the largest heat loss or gain?a) Doorsb) Wallsc) Windowsd) Roof

Which of the following will NOT decrease the rate at which thermal energy is lost from a house?Replacing single-glazed windows with double or triple-glazed onesInstalling loft insulationIncreasing the temperature inside the houseUsing draught excluders at the bottoms of external doors

Which of the following can be used to reduce heat loss through existing windows in a building?a) Insulated drapes and curtainsb) Adding more windowsc) Solar window filmd) Removing window coverings

As a way to mitigate the effects of climate change, scientists have developed a new highly reflective glass coating. The coating, which consists of cheap materials like glass and aluminum oxide particles, could reflect higher amounts of sunlight off of painted surfaces like roofs and roads, up to 70 percent more than regular paint. By reflecting light, the Earth can shed heat into space, cooling the planet. Ideally, this would prompt people to use less air-conditioning and reduce carbon emissions. According to the text, how does the new reflective coating most directly mitigate global warming?It consists of materials like glass and aluminum oxide particles.eliminateIts reflective properties let the Earth shed more heat.eliminateIt prompts people to use less air-conditioning.eliminateIt can be used to paint surfaces like roofs and roads.