What do all Volcanoes have in common?
A. The following energy from Earth's interior
B. The amount of energy they give off in eruption
C. The period of it's activity and dormancy
D. The size of the volcanic crater
A. The following energy from Earth's interior
The correct answer is A. The following energy from Earth's interior.
All volcanoes are formed due to the energy generated within the Earth's interior. This energy, often in the form of magma or molten rock, rises to the surface and creates a volcanic eruption. While the amount of energy released during an eruption may vary from volcano to volcano, the fundamental cause of volcanic activity is the internal energy of the Earth. The period of activity and dormancy, as well as the size of the volcanic crater, can differ for different volcanoes.
To determine what all volcanoes have in common, we need to understand the characteristics that are typically found in volcanoes. Let's analyze each option:
A. The following energy from Earth's interior: This is true for all volcanoes. Volcanoes are formed when molten rock called magma rises to the surface from Earth's mantle or asthenosphere. The energy required for this process comes from the heat generated by our planet's internal processes.
B. The amount of energy they give off in eruption: While volcanoes do release energy in the form of heat, gases, and pyroclastic material during eruptions, the amount of energy can vary significantly from one volcano to another. Some eruptions are relatively small and gentle, while others can be extremely violent and explosive. Therefore, the amount of energy they give off is not a common characteristic shared by all volcanoes.
C. The period of activity and dormancy: Volcanoes can have varying patterns of activity and dormancy. Some volcanoes remain active for long periods, continuously erupting or showing signs of activity, while others may be dormant for extended periods, with no volcanic activity. Therefore, the period of activity and dormancy can differ among different volcanoes, and so it is not a common characteristic shared by all.
D. The size of the volcanic crater: Volcanic craters can come in various sizes and shapes, depending on the volcano's type and eruption history. The size of the crater is not a defining feature that is consistent across all volcanoes.
Based on the analysis, the correct answer is A. The following energy from Earth's interior. This is the fundamental characteristic that all volcanoes share - they are all formed due to the movement of magma caused by the energy from Earth's interior.