Na caste system, people a. can move from one level of society to another b. work to create a society in which levels are eliminated and everyone is viewed as equal c. are born into and must remain at a certain level of society d. become hindu to improve their place in society

What evidence supports geological processes changing the surface of the earth? cutting down forests creates a decrease of habitats. tectonic plates uplift the rocky crust of earth to form mountains. competition in ecosystems creates a decrease in diversity. pollution runoff contaminates a lake.