TRUE or FALSE

1. A volcanic eruption occurs when hot materials from the earth’s interior are
thrown out of a volcano.
13
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 isreferred to as a glowing
avalanche. This is when freshly erupted magma forms hot pyroclastic flow which
have temperatures of up to 800 degrees.