1000's of year
eight weeks - two months
Keep and gather them in a mulch bin then when they decompose Mix them in with the garden soil
Bread will begin to decompose in a couple days. It can take 2 to 3 weeks to completely decompose.
Cardboard takes about 2 weeks to decompose in the ocean.
It takes about 3 to 4 weeks to decompose a paper bag.
Mulch itself is not alive, however within a few weeks or days there is a lot of life working with mulch to break it down. There are different bacteria and fungi that break it down into humus (not the kind you eat) and other nutrients. This is why you have to continue to apply mulch and also why aged mulch is good to plant in.
2-5 weeks
The banana will decompose in about 2 weeks.
Usually 3-4 weeks
10-15 weeks
10-15 weeks