Subsistence agriculture is self-sufficiency farming in ...
A tree (Nephelium lappaceum) of southeast Asia, bearing ...
Crop yield and water use efficiency(WUE)in a wheat-maize ...
The Transamerica Pyramid is the tallest skyscraper in San ...
A Tropical American tree that grows in Mesoamerica. Its ...
A Chinese philosopher once remarked that a leader must have ...
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