question 1 of 10\nmagma that erupts onto the surface of the volcano is called ____.\na. viscosity\nb…

question 1 of 10\nmagma that erupts onto the surface of the volcano is called ____.\na. viscosity\nb. pyroclastic flow\nc. tephra\nd. lava

question 1 of 10\nmagma that erupts onto the surface of the volcano is called ____.\na. viscosity\nb. pyroclastic flow\nc. tephra\nd. lava

Answer

Answer:

D. lava

Brief Explanation:

Magma that reaches the Earth's surface during a volcanic eruption is known as lava. Viscosity is a property related to the thickness of magma or lava. Pyroclastic flow is a fast - moving current of hot gas and volcanic matter. Tephra is fragments of rock and debris ejected during an eruption.