<span>A blue planet through and through: Earth's largest water reservoir is found trapped 400 miles BENEATH the surface. The Earth's largest expanse of water isn't on the surface of the planet, but instead is buried deep within its mantle, researchers have found.</span>
A slow change such as continents moving will create differences in ecosystems. This is also the same effect caused by a rapid change such a meteorite striking earth. These two phenomena will create diversity and different living conditions. The slow change however, will give organisms time to adopt giving them a good chance of survival unlike a rapid change which will give most, if not all, organisms little chance to survive.
By merchants coming from the west to ease
<em><u>A)</u></em> Egalitarian society a group based on the sharing of resources to ensure success with a relative absence of hierarchy and violence
<em><u>B)</u></em> Reciprocity the exchange of resources, goods, and services, among people of relatively equal status; meant to create and reinforce social ties
<em><u>C)</u></em> Class a system of power based on wealth, income, status that creates an unequal distribution of a society's resources
<u><em>D)</em></u><em> </em>Redistribution the form of exchange in which goods are collected from the members of the group and reallocated in a different pattern
<em><u>E)</u></em> Ranked Society a group in which wealth is not stratified but prestige and status are
<em><u>F)</u></em> Potlatch elaborate redistribution ceremony practiced among the Kwakitutl of the Pacific Northwest