Which of the following can convert organic matter into compost faster than the normal composting process?

Earthworm

Farmers, in large numbers all over the country, have again started using compost made from organic wastes of different types. In certain parts of the country, cattle are maintained only because they produce dung which is an important fertilizer and soil conditioner. Also, earthworms can convert organic matter into compost faster than the normal composting process. This process is now being widely used.