Explanation: An historical factor that contributed to the worldwide use of English was the prevalence of Great Britain as a dominant naval trading power during the Age of Navigation and subsequent Age of Colonialism.Jul
Answer: C
Explanation: It is correct
<span>How long has the Antarctic ozone layer been studied? Ozone was first measured from British Antarctic stations during the International Geophysical Year of 1957/58. ... If CFC releases had continued at the high rates of the mid 1980s, a continental sized ozone hole might have appeared over the Arctic.</span>