8 years
hundreds of years
There are 2.54 centimetres in one inch.
100 years
It takes 2.5cm to make 1 inch.
1000 years
It takes about 1,000 years
It takes about 1,000 years
One Billion!
about 1,500
It may take centuries for a soil to become fertile through the breakdown of rock and the accumulation of organic material, but human mismanagement can destroy that fertallity within a few years.
8 years
4
58 years
500 to 1,000 years
100 years
One can take the images themselves by obtaining a camera and finding inch worms hidden underneath objects near the soil or by looking for them online.