<span>The Plow is to the second social revolution as the steam engine was to the third social revolution.
Plow is an agricultural implement used for cutting, lifting, turning over and partly pulverizing soil. A social revolution is a fundamental change in a society. </span>Alexander Berkman says, <span>Social revolution means the
reorganization of the industrial, economic life of the country and consequently
also of the entire structure of society.</span>
Answer:
Primary succession occurs following an opening of a pristine habitat, for example, a lava flow, an area left from retreated glacier, or abandoned strip mine. In contrast, secondary succession is a response to a disturbance, for example, forest fire, tsunami, flood, or an abandoned field.
Answer:
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Explanation:
Brazil is rich in a variety of natural resources and is the world's leading producer of tin, iron ore and phosphate. It has large deposits of diamonds, manganese, chromium, copper, bauxite and many other minerals. However, the country has no significant oil reserves.
The United States and Canada have a rich supply of mineral, energy, and forest resources. The U.S. has abundant supplies of coal, copper, lead, iron, natural gas, timber, bauxite, and uranium. 18% of the land in the U.S. is arable land.
