Methane Is Produced in Manure Piles and Many Other Environments

Multiple Choice

Methane is produced in manure piles and many other environments.Which of the following statements is TRUE concerning this alternative fuel?

A) High concentrations are collected from pig farms annually.
B) It is found in large geological deposits.
C) It does not burn with enough energy to be useful.
D) It needs an effective collection technique.
E) All of these are true.