Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> A ________ is an opening in the earth’s crust through which molten material from the mantle escapes to the Earth’s surface.

• A. earthquake
• B. volcano
• C. flood
• D. tsunami

Answer 1

The correct option is B volcano

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> A volcano is an opening in the earth’s crust through which molten material from the mantle escapes to the Earth’s surface. The molten material is called magma when it is inside the volcano, and lava when it shoots out of the volcano and spreads onto the Earth’s surface.