Fact 1: Heavy rains cause flooding.

Fact 2: With the rain comes floods, and with the floods come erosion and landslides.

Given the two facts above, answer the question "what are landslides caused by?" with the following options: 
- mines
 - deforestation
 - Movement
 - Water expanding
 - waves
 - ice wedging
 - heavy rain
 - mouth of rivers


 

       heavy rain  