AIR AROUND US Crossword Puzzle

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QUESTIONS LIST:

dust: tiny solid particles in the air
smoke: a product of incomplete combustion
temperature: the measurement of how hot or cold the air is
exosphere: the outermost layer of earth's atmosphere
carbon dioxide: gas released when we exhale
atmosphere: a mixture of gases surrounding earth
water cycle: the process of water changing states and cycling through the environment
nitrogen: the most abundant gas in earth's atmosphere
windmill: device that converts wind energy into electricity
oxygen: gas essential for breathing