VOLCANOES

Mother Nature gives us a lot of precious resources such as gold ,pyramid,silver. However , Nature also causes some disaters .One of them is volcanoes .When they erupt ,lava will destroy everything around .If we know when volcanoes erupt, we can decrease their consequences .

Lots of volcanoes happen in " Ring of Fire" which is from California to Asia .Volcanoes explode because of the gas buildup .When the gas builds up a lot . The gas and lava ,which is hot rocks ,blows out the top ,it is a lot like the way a soda explodes .The lava can get up to 1600 degrees-a lot hotter than oven .After the lava cools ,it turns into rocks .One of the types of rock is opsidian , which is shiny and black.

When there is an eruption ,it will effect the weather ,people and animals .First ,the main effect on weather near a volcano is that there is often a lot of rain ,lightning and thunder during an eruption .This is because all the ash particles that are thrown up into the atmosphere are good as attracting water droplets .Second ,do you rememvber the eruption occured in Pompeii in 79 C.E., which killed about 2000 people and destroyed the beatiful city .Volcanoes effect people in many ways ,some are good and some are not .Some of the bad ways are that houses ,buildings ,roads and fields can get covered with ash .If there are heavy rains on the ash it creates a thick mud that has trapped people and animals .When all th trees and plants are destroyed by the lava , the animals have nothing to eat .

On the other hand ,there is a good part of volcanoes .The main good effect that volcaones help all the environment is to provide nutrients to the surrounding soil.Volcanic ash often contains minerals that are beneficial to plants ,and if it is very fine ash it is able to break down quickly and get mixed into the soil .

Volcanoes are natural phenomenons ,we can not make it not happen .We just make significant advances in forecasting volcanic eruptions.If we can overcome their consequences ,our earth will be greener as it has nutrients provided from the eruption .Phu Si moutain is very beautiful ,it is a result of eruption.