Fact 1: Being burried under soil and mud changes peat into coal through extreme heat and pressure in a swamp over a long period of time.

Fact 2: Marshes and swamps are wetlands.

Given the two facts above, answer the question "Where can peat, buried under soil and mud and through extreme heat and pressure, change into coal?" with the following options: 
- coastlines
 - alluvial
 - Sediment
 - uncontrolled
 - germany
 - wetlands
 - wind
 - deltas


 

      wetlands   