Beginning in the eighteenth century, discoveries in science, medicine, and public health caused death rates to drop dramatically.
Answer the following statement true (T) or false (F)
True
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Clastic sedimentary rocks are those formed from ________.
A) plant material B) animal material C) rock fragments D) magma
A rift valley is formed by the downward displacement of a block of the earth’s surface between tectonic faults.
a. True b. False
The leading cause for migration to the United States and Canada has been
A) freedom from religious persecution. B) avoiding harsh environmental conditions. C) forced migration. D) economic opportunity. E) fleeing dictatorial governments.
Match the type of fossilization with the correct definition
A) Indirect evidence of fossil life (i.e. tracks, burrows) B) Hollows left by dissolved fossils are filled with mineral matter C) Fine sediment encases plant remains, leaving behind an organic residue D) Organic pores are filled with precipitated minerals 1) Permineralization 2) Cast and mold 3) Carbonization 4) Trace Fossil