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:In which of the following activities is an induction…Termites are useful in agriculture because they?Which of the following sources of water is least…Calculate the annual depreciation of farm machinery…The following are useful effect of micro-organisms except?