We need a language to read a book, and that affects our thought process, as we start thinking like the author and behave in a manner we perceive from the books. Like how someone speaks under the influence of alcohol, books n authors too influence.
Sawdust that is created from cutting natural wood is safe for your compost no matter what kind of tree the wood comes from. Just make sure the wood has not been treated with any chemicals. Another option with sawdust is to try mixing it in with potting soil.
A lid on the compost bin will help to keep moisture in. If a pile gets too much water in it, it might not get enough air. Temperature. The temperature of the compost pile is very important and is an indication of the microbial activity of the decomposition process.