You are presented with the question "what are landslides caused by?" and the following answer choices: 
- mines
 - deforestation
 - Movement
 - Water expanding
 - waves
 - ice wedging
 - heavy rain
 - mouth of rivers

Now knowing that heavy rains cause flooding and with the rain comes floods, and with the floods come erosion and landslides, choose the best answer.


 

       heavy rain  