3. a sleeping volcano. 4. a mountain in Arizona. The explosion of a volcano can cause a wind. Volcanoes are always found among mountains. Mount Saint Helens is not in the West.
All volcanoes explode through a hole in the top.
III Thousands of years ago, the climate of North America became so cold that great sheets of ice, called glaciers, covered most of Canada and much of the northern part of the United States. The ice sheets were several miles thick in some places. The glaciers moved, pushing in front of them scooped-out soil and rock, which they left behind when they melted away. These heaps are called moraines. Long Island, Cape Cod, and Martha's Vineyard are mostly moraines.