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.
- What are they?
- How many are there?
- When did the last one erupt?
Answer
- Supervolcanoes are extremely large and powerful volcanoes.
- There are about 40 supervolcanoes on earth.
- The last one erupted 74,000 years ago.
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