WORLD CIVILIZATION

Detailed explanation-1: -Ferns and mosses are non-seed plants. They don’t make seeds, but they make spores, and the new plant grow from this spore.

Detailed explanation-2: -Common tradable commodities include crude oil, wheat, soybeans, gold, silver, livestock, coffee, sugar, cotton, corn, frozen orange juice, and natural gas.

Detailed explanation-3: -Economically, seeds are important primarily because they are sources of a variety of foods-for example, the cereal grains, such as wheat, rice, and corn (maize); the seeds of beans, peas, peanuts, soybeans, almonds, sunflowers, hazelnuts, walnuts, pecans, and Brazil nuts.