Cameroon GCE A-Level Geography Practice Questions - Cameroon General Certificate Of Education Advanced Level Geography (Subject Code 0750) Exam

Shield volcanoes erupt highly fluid, low-viscosity basic basaltic lava with low silica content that flows over extensive distances before solidifying. Shield volcanoes erupt highly viscous, gas-rich rhyolitic lava that accumulates immediately around the vent. Shield volcanoes are composed almost exclusively of pyroclastic ash and cinders deposited at their angle of repose. Shield volcanoes form exclusively in deep submarine trenches where hydrostatic water pressure flattens the volcanic cone.