The major useful component of the atmosphere is? by Sunday | Aug 11 | Geography WAEC | 0 comments A. neon B. air C. dust particles D. carbon dioxide E. oxygen Correct Answer: Option E – oxygen Users Also Read These:The transformation of pieces of information into a…The following are useful effect of micro-organisms except?Which of the following sources of water is least…Termites are useful in agriculture because they?Calculate the annual depreciation of farm machinery…