What is a Tsunami? what causes a Tsunami?
- Curious questions, Earth Science, Ocean
- January 23, 2015

People are living longer and longer these days. Thanks to constant improvements in health care and public safety, our expected lifespans have continued to increase over the thousands of years of human history. For example, people in England in the Middle Ages had an average life expectancy of only 38 years, while today the world’s
READ MORE



