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Why is Goma considered one of the most dangerous cities in the world?
It lies at the base of the very active Nyiragongo volcano
What happened during the 1977 eruption of Nyiragongo?
Lava raced down the mountain and killed several hundred people
What damage did the 2002 eruption cause in Goma?
It destroyed thousands of homes and forced many people to flee
Why do scientists believe another eruption will happen?
Nyiragongo is extremely active and eruptions are inevitable
Who joined Dario Tedesco to study the volcano?
U.S. volcanologist Ken Sims
Why did the scientists study Nyiragongo’s rocks and gases?
To predict when the volcano might erupt again
What dangerous feature did the scientists see inside the crater?
A huge lake of bubbling lava
Why was the lava lake especially frightening?
It released deadly gases and extreme heat
Why were gas masks necessary at the campsite?
The air around the crater was toxic
What is a “zero-age sample”?
Freshly cooled lava taken from the edge of the lava lake
Why is a zero-age sample important to scientists?
It helps them date rocks and predict eruptions
Why was Ken Sims chosen to collect the lava sample?
He had both climbing skills and scientific knowledge
What danger did Sims face while climbing the lava cone?
His shoe began melting from the heat
How did Sims feel when he reached the lava lake?
Amazed and emotional
How could Sims’s mission help the people of Goma?
It may help them prepare for future eruptions
