Examine the diagram of a volcano above and name each of the parts labelled A, B, C and D. Four parts named at 1m each. A = Ash cloud, or two other valid elements B = Vent C = Magma chamber D = Lava, Lava flow Explain one positive impact and one negative impact of volcanoes.

Examine the diagram of a volcano above and name each of the parts labelled A, B, C and D - Junior Cycle Geography - Question B - 2015

Question B

Examine the diagram of a volcano above and name each of the parts labelled A, B, C and D. Four parts named at 1m each. A = Ash cloud, or two other valid elements B... show full transcript

Worked Solution & Example Answer:Examine the diagram of a volcano above and name each of the parts labelled A, B, C and D - Junior Cycle Geography - Question B - 2015

Step 1

Examine the diagram of a volcano above and name each of the parts labelled A, B, C and D.

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Answer

A: Ash cloud (or acceptable alternatives like gas emissions)
B: Vent
C: Magma chamber
D: Lava, Lava flow

Step 2

Explain one positive impact and one negative impact of volcanoes.

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Answer

Positive Impact of Volcanoes

Volcanoes can create fertile soils that enhance agricultural productivity. The ash and minerals from eruptions are rich in nutrients, making them beneficial for crops. For instance, in regions surrounding Mount Vesuvius in Italy, volcanic soil has supported centuries of productive agriculture.

Negative Impact of Volcanoes

On the downside, volcanic eruptions can lead to severe destruction. They can destroy forests, buildings, and infrastructure in nearby areas. The 1980 eruption of Mount St. Helens in the USA is a notable example, where extensive damage was caused to the surrounding landscape and human settlements.