Mention the global occurrence of volcanic eruptions in 2021 and their impact on regional environment. UPSC GS Paper 1 2021, 10 Marks

Q7. 2021 में घटित ज्वालामुखी विस्फोटों की वैश्विक घटनाओं का उल्लेख करते हुए क्षेत्रीय पर्यावरण पर उनके द्वारा पड़े प्रभाव को बताइए । (150 शब्दों में उत्तर दीजिए)

Q7. Mention the global occurrence of volcanic eruptions in 2021 and their impact on regional environment. (150 words) 10 Marks

Answer:

Overall, 46 volcanoes were in continuing eruption status as of 9 December 2021. An eruption marked as “continuing” does not always mean persistent daily activity, but indicates at least intermittent eruptive events without a break of 3 months or more.

Some of the volcanonic eruptions in 2021 are:

Kilauea, United States; La Palma, Spain; Ulawun, Papua New Guinea; Krakatau, Indonesia, Merapi, Indonesia, Semeru, Indonesia; Etna, Italy; Bezymianny, Russia; Reventador, Ecuador; Ibu, Indonesia; Stromboli, Italy.

Volcanic eruptions have directly and indirectly benefited environment:

  • Volcanic materials  break down and weather to form the most fertile soils on Earth.
  • The internal heat associated with young volcanic systems has produce geothermal energy.
  • Metallic minerals mined in the world–such as copper, gold, silver, lead, and zinc–are associated with magmas found deep within the roots of extinct volcanoes.

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