<u>Answer:</u>
<em>Latvia is </em><em><u>G</u></em>
<em>Ukraine is </em><em><u>F</u></em>
<em>Poland is </em><em><u>A</u></em>
<em>Bulgaria is </em><em><u>H</u></em>
<em>Bosnia and Herzegovina is </em><em><u>D</u></em>
<em>Slovakia is </em><em><u>B</u></em>
<em>Russia is </em><em><u>E</u></em>
<em>Croatia is <u>C</u></em>
A caldera is a large depression formed when a volcano erupts and collapses. During a volcanic eruption, magma present in the magma chamber underneath the volcano is expelled, often forcefully. When the magma chamber empties, the support that the magma had provided inside the chamber disappears.
