1. topsoil - Noun
2. topsoil - Verb
The upper layer of soil; surface soil.
Source: Webster's dictionaryKnowledge isn't restrained by the limits of Malthus. Information doesn't need topsoil to grow in, only freedom. Given eager minds and experimentation, it feeds itself like a chain reaction. David Brin
There's nothing under the ground that's worth more than the little layer of topsoil sitting on top of it. Wendell Berry
After that, they are ready for a little bit of math — have them calculate the area inside the raised beds and then calculate the volume of topsoil needed to fill them in level with the top edges. Source: Internet
According to Maria-Helena Semedo of the UN’s Food and Agriculture Organization, if we continue to degrade the soil at the rate we are now, the world could run out of topsoil in about 60 years. Source: Internet
As they move through the soil, they mix and aerate the soil and incorporate minerals into the topsoil. Source: Internet
As the topsoil becomes saturated and heavy, it can start to slide over the bedrock and become a shallow landslide. Source: Internet