Give reason why volcanoes have constructive effects in favour of man.
Answers
Over geologic time, volcanic eruptions and related processes has helped mankind in various direct and indirect ways.
• The main good effect that the eruption normally does to the environment is that it provides essential nutrients to the surrounding soil.
• Volcanic ash often contains minerals that are beneficial to plants.
• Volcanic material ultimately break down and form some of the most fertile soils on earth, cultivation of which has produced abundant food and fostered civilizations.
• The internal heat associated with young volcanic systems has been harnessed to produce Geothermal Energy.
• Most of the metallic minerals mined in the world- such as copper, gold, silver, lead, zinc-- are associated with magmas found deep within the root of extinct volcanoes which can be of great use to mankind.