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The most abundant element in the earth 's crust is oxygen . The second most abundant element is the earth's crust is -
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Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called
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Which one is the most abundant gas in the air?
When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.
Most of the atmospheric air pollutants are present in large quantity in
Select the word or phrase that is most closely opposite in meaning to the original word. Abundant
The most abundant element in the Earth's crust is -