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8. When is an earthquake said to be of volcanic origin? If it occurs A. in areas where folding of plates takes place B. as magma flows out of the earth's crust C. as a result of electromagnetic waves D. as a nuclear explosion 9. Where does a tectonic earthquake frequently occur? A. in areas of high altitude C. at the earth's mantle B. at the rims or edges of crustal plates D. in the ice-capped mountain ranges 10. Which activity can cause an artificial earthquake? A. deforestation C. seawater pollution B. mining/quarrying D. building of water dams

          8. When is an earthquake said to be of volcanic origin? If it occurs
A. in areas where folding of plates takes place
B. as magma flows out of the earth's crust
C. as a result of electromagnetic waves
D. as a nuclear explosion
9. Where does a tectonic earthquake frequently occur?
A. in areas of high altitude
C. at the earth's mantle
B. at the rims or edges of crustal plates
D. in the ice-capped mountain ranges
10. Which activity can cause an artificial earthquake?
A. deforestation
C. seawater pollution
B. mining/quarrying
D. building of water dams

Added by Benjamin B.

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