Because it contains, millions of tiny shards of glass, which can get into your lungs. Is so it can shred your lungs to pieces.
Pretty much everything about a volcano is deadly, but especially the ash, dust, and smoke that can suffocate you, and the extreme heat. I'm not saying that the lava itself isn't deadly, but there are other things about a volcano that can kill you. My advice: stay away from them!
An ash cloud is something which comes out of the volcano
Mt.Vesuvius buried Pompeii under mud and ash. Herculaneum was also buried by the same volcano at the same event.
No, an ash fall is not a volcano. An ash fall occurs when volcanic ash and debris are ejected from a volcano during an eruption and then carried by winds to surrounding areas, causing the ash to fall to the ground.
yes, it is and so called deadly.
The volcano that has caused the ash cloud is called Taal Volcano, located in the Philippines.
It does not affect a volcano's ability to erupt. However, if a volcano is in a cold climate or tall enough that there is snow and ice at its summit, an eruption could cause this to melt. The water mixed with ash can form deadly mudflows called lahars.
Pelean
Volcanic ash tends to contain a mixture of tiny, sharp pieces of rock and glass, made from liquid droplets volcano that have cooled quickly. It's abrasive and mildy acidic and is known as tephra. Volcanic ash is expelled with great force from a volcano during an eruption. When the ash falls, it is hot and deadly, and can ignite fires, and it can also be spread over a very wide area by winds.
A composite volcano is steep, as thick, viscious lava spurts out. Because as the thick lava is dense, it travels very slowly down and cools down farly quickly. Because of this, the composite volcano is steep sided. It also emits a lot of ash and is less deadly than a shield volcano.
The volcano in Iceland, Eyjafjallajökull, produced a large amount of ash due to the interaction between water and magma. When the lava came into contact with the ice on top of the volcano, it resulted in explosive eruptions that fragmented the lava into fine particles, creating the ash cloud.
An ash cloud is where the volcano erupts ash out and it forms like a cloud, but it's of ash. Mt st Helen's had the biggest ash cloud and it was so strong it blew part of the mountain off