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Who discovered the soil?

The early concepts of soil were based on ideas developed by a German chemist, Justus von Liebig (1803–1873), and modified and refined by agricultural scientists who worked on samples of soil in laboratories, greenhouses, and on small field plots.

When did soil first appear?

about 4.6 billion years ago

What was the first soil?

These earliest soils were formed in an atmosphere with little or no oxygen and consisted of green clays. There would have been no organic matter in the soils and so the soils can be considered to be sterile. Gradually, but still some 400 million years ago, in the Devonian period, soils began to develop.

Where was the oldest soil discovered?

Earth’s oldest soil could be tucked away in an ancient rock outcrop in Greenland, according to new research. Dating back some 3.7 billion years, the suspected soil—exposed underneath a retreating ice cap—could potentially contain fossilized traces of primordial life.

How old is the oldest soil?

Researchers from the University of Copenhagen and University of British Columbia examined the chemical composition of three-billion-year-old soils from South Africa — the oldest soils on Earth — and found evidence for low concentrations of atmospheric oxygen.

Why is soil the root of life?

Soil is our life support system. Soils provide anchorage for roots, hold water and nutrients. Soils are home to myriad micro-organisms that fix nitrogen and decompose organic matter, and armies of microscopic animals as well as earthworms and termites. Without soil human life would be very difficult.

What animals live in the soil?

Moles, shrews, mice, gophers and prairie dogs are some of the larger mammals that spend all or most of their lives in the soil. There are also millions of insects which spend at least part of their life cycles in the soil. Earthworms, sowbugs, mites, centipedes, millipedes and spiders also live in the soil.

What did Earth look like before plants?

Before the era of plants, water ran over Earth’s landmasses in broad sheets, with no defined courses. “Sedimentary rocks, before plants, contained almost no mud,” explains Gibling, a professor of Earth science at Dalhousie. “But after plants developed, the mud content increased dramatically.