Q.1
An avalanche is ...
  • a gradual movement of a mass of snow towards the coast
  • a slow movement of ices towards a river
  • a rapid movement of snow over flat land
  • a sudden fast movement of snow down a steep slope
Q.2
Which of the following is not a method used to manage avalanches in the area of a winter sports resort?
  • Brushing the snow off a slope
  • Setting off an explosion in the snow
  • Building a reinforced tunnel over a road
  • Using large fences and barriers
Q.3
Which of the following is least likely to cause an avalanche?
  • The first light snowfall of the winter
  • Heavy snowfall
  • Skiing
  • An earthquake
Q.4
Which of the following is a type of avalanche?
  • Lumpy
  • Block
  • Slab
  • Chunk
Q.5
Why is the type of avalanche mentioned in the previous question more destructive than a loose snow avalanche?
  • It is made from a large volume of very compacted snow
  • It occurs over a wide area and travels a long way
  • It carries rocks, trees and other debris with it
  • All of the above
Q.6
When is the main avalanche 'season' in mountain ranges in the Northern hemisphere?
  • July to September
  • October to December
  • January to March
  • April to June
Q.7
Which of the following statements about avalanches is correct?
  • Avalanches only occur in summer when melting snow becomes very soft
  • It is difficult to predict exactly when and where an avalanche will occur
  • All avalanches will destroy buildings that are in their path
  • Avalanches pose no threat to skiers because their skis keep them on the surface of the moving snow
Q.8
Which of the following most closely describes some of the effects of avalanches on an area?
  • An increase in tourism because a lot of people come into the area hoping to watch more avalanches
  • The soil and grass is removed from the slopes of the mountain which decreases the agriculture of the meadows in the summer
  • It increases the number of wild animals and trees by sweeping away the rubbish left by tourists
  • Avalanches cause deforestation, destruction and damage to some buildings and financial losses to an area
Q.9
What is the main cause of death from avalanches?
  • Crushing
  • Being hit on the head by rocks in the snow
  • Suffocation
  • Freezing
Q.10
When an avalanche is over ...
  • the snow becomes extremely solid
  • the snow rapidly melts because it is warmer lower down the slopes
  • the snow is very soft as it contains a lot of air
  • the snow becomes very powdery and easy to clear
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