TRUE OR FALSE ... 1. Inactive volcanoes are those that have not erupted for the last 10,000 years and their physical
form is being changed by agents of weathering and erosion
2. Phreatic or hydrothermal is a stream-driven eruption due to contact between water and magma.
3. The most excessively type of eruption of gas and pyroclastic materials is Vulcanian
4. The most common type of volcano according to shape is cinder
5. Moving tectonic plates can cause earthquakes, which then create fissures, where the magma
beneath the surface has an opportunity to escape.
6. The Philippines ranked second in the world in generating electricity using geothermal energy
7. The hot steam from deep within the ground is used to turn the turbine-generator system in a
hydroelectric power plant.
8. Non-viscous lava has high silica content.
9. Stratovolcanoes have very sticky and thick lava, which can make them very explosive when they
erupt
10. Geothermal energy is a renewable energy resource and there are no fuel cost.​