Scientists' main worry during this time was the growing bulge of rock and ice on the north face of the mountain. By May 7 scientists feared the worst. Their warnings led Washington Governor to set up safety zones around the mountain. The inner "red" zone was open to scientists only. The outer "blue" zone was open only to people who got special permits. But in spite of these warnings, some people got past the road barriers and risked their lives trying to get close to the volcano.
16 American scientists predicted that Mount Saint Helens was to erupt soon.
A Right B Wrong C Not mentioned
17 Pilots flying at the height of more than 2,100 meters saw a thick black column of ash and steam shooting up into the air from the crater.
A Right B Wrong C Not mentioned
18 A new crater, which was to the south of the old one, was formed after the second eruption.
A Right B Wrong C Not mentioned
19 The quakes recorded during the first week of April in the area of Mount Saint Helens warned scientists of a new eruption.
A Right B Wrong C Not mentioned
20 Two scientists lost their lives during the second eruption of Mount Saint Helens.
A Right B Wrong C Not mentioned
21 Most of the dreadful eruptions of Mount Saint Helens took place in early May.
A Right B Wrong C Not mentioned
22 The eruption of Mount Saint Helens attracted a large number of foreign tourists.
A Right B Wrong C Not mentioned