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