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

Fact 2: During heavy rains, the systems often overflow into the nearest water body.

Given the two facts above, answer the question "What might cause a flood to occur" with the following options: 
- Building a dam
 - Heavy rains
 - Wet weather
 - erosion
 - A drought
 - A hard freeze
 - streams
 - massive damage


 

  Heavy rains       