Nature: Wild Earth 自然：野生地球
 
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1 : You can't pass that mountain road. It's covered in rocks and earth because there was a ________.
landslide
landscape
landfall
landfill
 Tractor clearing rocks and earth
 
2 : Volcanoes are dangerous but beautiful, with all that fire and ________ exploding out of the top.
larva
crater
ash
lava
 Volcanic eruption
 
3 : Cities that are built on ________ can benefit from earthquake proof buildings which can stay upright if an earthquake occurs.
tremors
aftershock
fault lines
seismic waves
 Builders at work
 
4 : The tropical ________ season is from mid-August to late October. The storm and wind can cause great damage so it's best not to visit the Caribbean then.
hurricane
tsunami
gale
flood
 Weather system
 
5 : Skiers need to be very careful on that part of the mountain as it is well-known for ________. If the snow breaks loose, it can move at 130 kilometers per hour within 5 seconds, so a victim would not have a chance.
mudslides
icebergs
igloos
avalanches
 Snow moving down a mountain
 
6 : It can be difficult to define a ________ as different countries have different climates. Generally speaking, it is when the demand for water is greater than the supply.
draught
drought
inferno
monsoon
 Dried earth