It depends on where your at, in the rainforest it can happen in a year, while in other places take hunreds of years.
At least 2000 years or so.
Earthworms live in the earth, mostly in muddy grounds where you can actually see one.
one year exactly
one moon year
He did not tell us.
Hermitage
hundreds of years
350-500 years
100 years
Depending on geographic location, the natural build-up of one inch of topsoil requires about 400 - 10,000 years. Certain locations can require less, and others, even more.
It depends on where it is forming, natural geology, climate, etc... but it is considered a non-renewable resource because on average it takes 100 to 500 years for 1 inch of topsoil to "grow." It is also interesting to note it grows downward as the rock breaks down, not upwards as one might imagine.
it can take anywhere form one to two years
It depends on where it is forming, natural geology, climate, etc... but it is considered a non-renewable resource because on average it takes 100 to 500 years for 1 inch of topsoil to "grow." It is also interesting to note it grows downward as the rock breaks down, not upwards as one might imagine.
1year and 21 seconds
Fertile is renewable albeit at a very slow rate. It can take up to one thousand years to renew one inch of topsoil that is washed or blown away.
900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000lbs
LESS than one thirty - second of it!
A good average density for topsoil is 100 pounds per cubic foot. There are 27 cubic feet in one cubic yard, and so one cubic yard weighs around 2,700 pounds.2,700/40 = 67.5Therefore, it will take about 67.5 forty pound bags to make one cubic yard of topsoil.