Let’s talk about dirt. Soil, earth, mud.
I don’t play in the dirt as much as I used to, but when we went to Alaska last August, our white truck turned brown from all the dirt on the roads we traveled. It was quite a transformation.
How interesting can dirt be? Very interesting is the answer. I have a new appreciation for it, and I’m going to go play in some as soon as I can.
Fun dirt facts (from audubon.org):
- There are 70,000 different types of soil in the U.S.
- One tablespoon of soil has more organisms in it than there are people on earth
- It takes a minimum of 500 years to form one inch of topsoil
- There are 5,000 different types of bacteria in one gram of soil
- Fifteen tons of dry soil per acre pass through one earthworm each year
- 1,400,000 earthworms can be found in an acre of cropland