TRUE OR FALSE
Directions: Draw a star if the statement given is correct or true, and square if it is false or wrong
statement
13. Crater glow due to presence of magma at or near the crater.
17. ncrease in the frequency of volcanic quakes with rumbling sounds, occurrence of
volcanic tremors.
18. Volcanic landforms are controlled by the geological processes that form them after
they have fomed.
19. Rhyolitic magmas usually have lower gas contents than basaltic magmas.
20. The amount of gasses contained in the magma affects its viscosity.
21. Gas dissolved in magma tends to decrease its ability to flow.
22. Volcanoes erupt differently.
23. The volcanoes eruptive style depends on the magma's flammability.
24. The amount of magma is also related to the chemical composition of the magma.
25. Gas gives magmas their explosive character, because volume of gas expands as
pressure is reduced.​