Directions: Write TRUE if the statement is correct and FALSE if otherwise. Write your answer before each

item number.

1. A volcanic eruption occurs when hot materials from the earth’s interior are thrown out of a volcano.

2. The most common type of eruption is caused by the movement of tectonic plates.

3. Making evacuation plans with the family members is needed during and after volcanic eruptions.

4. Lava can be pushed hundreds of feet into the air when volcanoes erupt.

5. One of the signs that a volcano is about to erupt is that there is a decrease in the frequency of volcanic

quakes with rumbling sounds, occurrence of volcanic tremors.

6. Portable battery-operated radio and extra batteries are things needed to prepare as the volcano begins to

erupt.

7. Floods, airborne ash, or noxious fumes can spread 100 miles or more.

8. There is a decreased steaming activity; change in color of steam emission from white to gray due to

entrained ash is a sign that a volcano is about to erupt.

9. The pyroclastic flow is formed from rock fragments following a volcanic explosion.

10. The most dangerous type of volcanic eruption is referred to as a 'glowing avalanche. This is when freshly

erupted magma forms hot pyroclastic flow which have temperatures of up to 800 degrees. ​​