Question

5. A volcano is basically a mountain that(a) ………………. downward to a pool of (b)……………….. rock below the surface of the earth. When pressure(c) ………………. up, eruptions occur. Gases and rock shoot up (d)………………. the opening and fill the air (e) …………… lava fragments. Eruptions can cause blasts, mudslides, lava flows, avalanches, falling ash and floods. Volcano eruptions (f) ……………….. to destroy entire forests. An (g) …………….. volcano can trigger tsunamis, flash floods, earthquakes, mudflows and rock falls. a. a) open; b) opens; c) opening; d) will open b. a) melting; b) melted; c) molten; d) melt c. a) is building; b) builds; c) build; d) has built d. a) in; b) by; c) through; d) from e a) with; b) by; c) in; d) up f. a) have known; b) have been known; c) has known; d) have been knowing g . a) erupting; b) eruption; c) erupted; d) erupting

Answer 1

A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lateral blasts, lava flows, hot ash flows, mudslides, avalanches, falling ash and floods. Volcano eruptions have been known to knock down entire forests. An erupting volcano can trigger tsunamis, flash floods, earthquakes, mudflows and rockfalls.

Answer 2

Answer:

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