Read and Complete

Choose the word that best completes each blank.

Many cities are now painting their rooftops white to fight rising summer temperatures. Dark roofs absorb a large amount of sunlight and release it as heat, which makes buildings hotter and forces air conditioners to work harder. A white surface reflects much of that sunlight back into the sky instead. Tests in several cities have shown that a white roof can stay noticeably cooler than a dark one on a sunny day, lowering both indoor temperatures and electricity bills.

To cope with hot summers, some cities are painting their rooftops —whitewidewild. Dark roofs absorb sunlight and release it as —heatheapheir, making buildings warmer. A pale surface instead —reflectsrejectsrefl002s much of the sunlight back into the sky, which helps keep buildings cooler and reduces electricity use.