How does the viscosity of the magma fed to volcanoes affect nearby life and property?

A volcano that expels highly viscous magma is a greater threat to life and property because it is more explosives and thus is more difficult or impossible to predict. When there are more explosives happen, the damage that created to nearby life and poverty will also be increased. Depending on the amount of magma that being erupted, it might take more than ten years for the soil to have good enough composition for plants to grow.

Took the words right out of my fingers