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These zones, which are separated by the parallels of latitude, are generally termed the <em>astronomical</em> or <em>mathematical zones</em> to distinguish them from others called <em>physical zones</em>, which are bounded by the lines of mean annual temperature.

Mathematical Climate Zones

These zones, which are separated by the parallels of latitude, are generally termed the astronomical…

Tall grasses native to the warm temperate and tropical climates. They contain stout fibrous stalks with sap rich in sugar.

Sugar Cane

Tall grasses native to the warm temperate and tropical climates. They contain stout fibrous stalks with…