Fill in the blanks with the correct answer.

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
First layer contains dead and .Second layer is muddy .Third layer is .Fourth layer is and the last layer contains small .