Q.9. In volcanic areas, groundwater heated by magma is a source of
energy

a) solar
b) hydroelectric
c) biomass
d) geothermal

Q.10. What is the largest and most active volcano in the world?

a) Olympus Mons
b) Mount Ruiz
c) Mauna Loa
d) Mount Vesuvius

Q.11.
forms when repeated lava flows build up a broad, gently
sloping mountain, like Mauna Kea in Hawaii.

a) Cinder cones volcano
b) Composite volcano
c) Shield volcano
d) Lava dome volcano