The source of the earliest listed depiction included in the article of soil being linked to human health
What is The Bible?
In the United States, 25% of the annual harvest of this specific crop is currently consumed for the production of ethanol biofuel
What is corn?
This imaginary line separates humid eastern and semi-arid western Great Plains.
What is the 100th meridian?
What happened just before or at the onset of the Greek 'Dark Ages'?
What is The transition from natural to anthropogenic landscapes?
The Pioneer of organic farming and a founder of the Soil Association (UK)
Who is Lady Eve Balfour
This many people are expected to enter the middle class over the next two decades, significantly increasing the global demand for meat, dairy, and grain
What is 3 billion?
This type of erosion, driven by wind, dominated in the western Great Plains.
What is eolian erosion?
The timing of the establishment of an anthropogenic landscape corresponds to the expansion of________
What is Urban civilizations and the development of agricultural practices?
The radioactive element released during the Chernobyl disaster
What is Cesium?
The estimated annual cost to the global economy in productivity losses specifically caused by soil erosion
What is $400 billion?
These ecosystems are highly productive and act as major carbon sinks but are sensitive to drought.
What are the Great Plains grasslands?
Erosion plays a significant role in this process
What is Chemical weathering?
The Full name of the acronym PSNRU
What is the Plant, Soil and Nutrition Research Unit?
While 25% of agricultural land is highly degraded, the sources note that this percentage of cultivated land is actually improving through rehabilitation
What is 10%
This environmental factor most strongly controls grassland productivity and stability.
What is precipitation?
High levels of CaCO3 concentrations between the Early and Mid-Holocene indicate?
What is Warm spring and summer temperatures?
The compounds produced by microorganisms as a competitive advantage
What is Antibiotics?
In the United States, soil is currently eroding at a rate this many times faster than its natural regeneration rate
What is 10x faster?
This statistical method reduces multiple variables into key components to detect patterns.
What is Principal Component Analysis (PCA)?
Lake name and country border?
What is Lake Dojran
Macedonia/Greek border