distinguish between
1) vent and crater
2) dormant and extinct volcanoes
3) focus and epicenter
4) seismology and seismologist
Answers
Answer:
1) Vent and Crater
Vent:- A vent of a volcano opens on the side of a volcano and can not seal itself.
Crater:- The crater of a volcano is always situated on the top and it can seal itself to form a new crater.
2) Dormant and Extinct Volcanoes
Dormant Volcano:- Those volcanoes which have not erupted since a long time but can erupt in the coming future are known as dormant volcanoes. For ex:- Mt Pelee, Hekla etc.
Extinct Volcanoes:- The volcanoes which have not erupted since a long time and have no chance of erupting in the future are known as extinct volcanoes. For ex:- Mt Kilimanjaro, Ben Nevis etc.
3) Focus and Epicentre
Focus:- The origin of the earthquake is known as focus. It is the place where rocks start to fracture.
Epicentre:- The point on earth just above the focus is known as the epicentre of an earthquake.
4) Seismology and Seismologist
Seismology:- The science related to the study of earthquakes is known as seismology.
Seismologist:- The people who study seismology are known as seismologists.
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