Get Directed Reading A (lesson 9-2) Section: Effects Of Volcanic Eruptions

Volcanic eruptions which cause earthquakes, fast flood, mudslide and rock fall. Lava which travels very far and they destroy many lives and bury them into the lava. Breathing problems and skin irritation take place due to the ash and fog of the volcano.

Volcanoes have a large impact on their locality. They produce ash, lava, volcanic bombs , pyroclastic flows and lahars . Ash from large volcanoes has been known to affect global climates. Powerful eruptions are also associated with huge pyroclastic flows and volcanic bombs.

Injected ash falls rapidly from the stratosphere -- most of it is removed within several days to weeks -- and has little impact on climate change. But volcanic gases like sulfur dioxide can cause global cooling, while volcanic carbon dioxide, a greenhouse gas, has the potential to promote global warming.

Volcanoes spew hot, dangerous gases, ash, lava, and rock that are powerfully destructive. People have died from volcanic blasts. Volcanic eruptions can result in additional threats to health, such as floods, mudslides, power outages, drinking water contamination, and wildfires.

Further effects are the deterioration of water quality, fewer periods of rain, crop damages, and the destruction of vegetation. During volcanic eruptions and their immediate aftermath, increased respiratory system morbidity has been observed as well as mortality among those affected by volcanic eruptions.

Positive: Lava and Ash deposited during an eruption breaks down to provide valuable nutrients for the soil... this creates very fertile soil which is good for agriculture. Negative: Deadly and devastating Lahars are made when... ash and mud from an eruption mixes with rain or melting snow making fast moving mud flows.

Volcanic eruptions can be extremely damaging to the environment, particularly because of a number of toxic gases possibly present in pyroclastic material. It typically consists mainly of water vapour, but it also contains carbon dioxide and sulphur dioxide gas.

Volcanic eruptions can result in additional threats to health, such as floods, mudslides, power outages, drinking water contamination, and wildfires.