Chemistry in Context TOP Exam Questions And CORRECT Answers
What two things do most human activities have in common?1) They require the consumption of resources, and 2) the creation of waste What is the major challenge of the century?The need to find energy sources that are both clean and sustainable sustainabilitymeeting the needs of the present without compromising the ability of future generations to meet their needs What does any discussion of sustainability need to include?conservation atmospherethin veil between earth and outer space What is the composition of dry air by volume?78% nitrogen, 21% oxygen, 1% other gases, percent meaning parts per hundred
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