Sagot :
Answer:
Volcanic ash is a mixture of rock, mineral, and glass particles expelled from a volcano during a volcanic eruption. The results of the preliminary analysis of the chemical content of Mount Kelud volcanic ash showed that the volcanic ash contained 55.54% SiO2. This high silicate content would be beneficial to increase the strength and resistance of plants to pests and diseases.
Answer:
The average volcanic eruption realeases millions to trillions cubic meters if ash into the atmosphere. Most of it falls near the volcano, but a significant portion can travel far away, drifting in the atmosphere for hundreds, thousands, tens of thousands of miles around the globe.