Directions: You have one brief passage with five questions following each passage. Read the passages carefully and choose the best answer to each question out of the four alternatives. 

A recent investigation by scientists at the USA Geological Survey shows that strange animal behaviour might help predict future earthquakes. Investigators found such occurrences in a ten kilometre radius of the epicentre of a fairly recent quake. Some birds screeched and flew about wildly, dogs yelped and ran uncontrollably. Scientists believe that animals can perceive these environmental changes as early as several days before the mishap. In 1976, after observing the animal behaviour, the Chinese were able to predict a devastating quake. Although hundreds of thousands of people were killed, the government was able to evacuate millions of other and thus keep the death toll at a lower level. 

Q:

What prediction may be made by obeserving animal behaviour? 

• 1
  The ten kilometre radius of epicentre
• 2
  Ecological conditions
• 3
  An impending earthquake
• 4
  The number of people who will die