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science flash cards
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Question | Answer |
---|---|
Which kind of eruption is associated with pyroclastic material being released. | explosive eruption. |
What is the difference between lava and magma. | Magma is in Earth and lava is above Earths surface. |
What process cause hot, solid rock to come through the mantle over hot spots. | convection |
what flows onto Earths surface during a non-explosive volcanic eruption. | lava |
Which type of volcano is least likely to have a pyroclastic flow? Why? | Shield volcanoes because on the picture there is no pyroclastic flow. |
What type of volcano is composed mostly of pyroclastic material? | cinder cone |
Volcanic islands can sometimes form over hot spots. What land feature should be under a hot spot? | The mantle Plume. |
What type of volcano has the steepest sides? why? | Cinder cone because cinders and ash build up around the vent. |
If a volcano erupted alternates between quiet and violent eruptions which type of volcano is it? | Composite |
When there are long cracks in the Earths surface and magma can sometimes erupt from it what are the cracks called? | Fissures |
What volcanic features form a small depression around a vent? | Crater |