Fact 1: When a body of water receives more water than it can hold , a flood occurs.

Fact 2: Flood probability is based on past floods.

Given the two facts above, answer the question "How do we determine the probability of receiving more water than a body can hold?" with the following options: 
- evaporation
 - climate
 - The past
 - watershed
 - Dilution
 - energy usage
 - Temperature
 - salinity


 

   The past      