Upper portions of the Grand Canyon show undisturbed horizontal layers of sedimentary rock. Which of Steno’s principles helps explain this?
A. principle of original verticality
B. principle of lateral continuity
C. principle of original horizontality
D. principle of superposition
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It is Science

During the antebellum period, religion was used by many americans to a) justify the existence of slavery. b) unify all churches against slavery. c) allow slaves to become ordained ministers. eliminate d) inspire slaves to spread christianity in africa.

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

The federal crescent is shaped like what letter