The part of the earth’s crust that is covered by oceans and seas is called? by Sunday | Jun 14 | Geography WAEC | 0 comments A. biosphere B. hydrosphere C. ionosphere D. stratosphere Correct Answer: Option B – hydrosphere Users Also Read These:Which of the following landforms may occur when…Mountains formed as a result of compressional forces…The proportion of the earth's surface occupied by…The mineral contents of the upper part of the…The vessels that operate on specific route on high…