Composting is by far one of the easiest at-home projects and has many environmental benefits. It helps reduce landfill waste by allowing natural processes to decompose organic material which reduces the amount of methane that landfills produce. Composting soil is a natural fertilizer that reduces the need for chemical fertilizers, which do more harm in the long run.
start by making a bin out of any materials
then line the bottom with soil and dry leaves
now put any organic material in the bin (banana peels, apple cores, etc)
fun fact: paper is compostable!
mix it up every couple of days
be sure to watch the moisture, it shouldn't be runny
put a lid on the container/bin to prevent animals
add earthworms or yeast to kick start the composting