They grow much faster and they grow to be larger than normal crops.
A.Humans use their knowledge to locate resources for them selves thereby reducing competition among them
Something very useful and widely used from a volcano is the Basalt fibre because it has the advantage of good combination properties. It is aplied in fire-fighting, environment protection, aviation, the arms industry, atomobile and plastics and even in the construction industry
There is a huge amount of precipitation among the countries situated in the tropical region such as Hawaii or any other tropical island due to its climatic conditions. Since a tropical region receives heat from the Sun directly, the region would eventually be warmer causing more frequent evaporation causing rain.