Cover of the textbook New Headway Pre-Intermediate - Workbook

The key answer of exercise 12

The key to exercise solutions in chapter 12 - Grammar for the textbook New Headway Pre-Intermediate - Workbook with authors Liz Soars, John Soars and Paul Hancock from Oxford University Press

Question

Read the introduction about supervolcanoes.

  1. What are they?
  2. How many are there?
  3. When did the last one erupt?

Answer

  1. Supervolcanoes are extremely large and powerful volcanoes.
  2. There are about 40 supervolcanoes on earth.
  3. The last one erupted 74,000 years ago.