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Volcanoes can have both negative and positive effects on the landscape and on people - Leaving Cert Geography - Question C - 2009
Question C
Volcanoes can have both negative and positive effects on the landscape and on people. Explain one negative and one positive effect of volcanoes.
Worked Solution & Example Answer:Volcanoes can have both negative and positive effects on the landscape and on people - Leaving Cert Geography - Question C - 2009
Step 1
Positive Effect
Answer
One significant positive effect of volcanoes is the creation of fertile soil. Volcanic ash is rich in minerals, which enhances soil fertility, making it highly suitable for agriculture. This can lead to increased agricultural productivity, supporting both local economies and food security.
Moreover, regions surrounding active volcanoes often become vital agricultural hubs, attracting farmers due to the rich nutrients provided by volcanic deposits.
Step 2
Negative Effect
Answer
A major negative effect of volcanoes is the destruction caused by lava flows and volcanic eruptions. When a volcano erupts, it can release molten lava, ash, and gases that pose severe risks to life, property, and infrastructure.
For instance, in 1980, the eruption of Mount St. Helens in the United States caused widespread destruction, obliterating forests, contamination of water supplies, and loss of human life. Additionally, the ash fall can affect air quality and lead to respiratory problems in people living nearby.