Stratovolcanoes are usually defined as those volcanoes that are characterized by the presence of steep slopes, having a height of about thousands of feet and comprised of alternate layers of ash deposited particles and lava flows. These are very explosive and when it comes in contact with water, it erupts violently. These are also known as composite volcanoes. It produces pyroclastic materials, along with volcanic blocks and ashes with a large amount of toxic gases.
The European Energy Security Strategy (2014) which acts as guidance for these policies emphasizes the need to become less dependent on other countries.
