__And Compulsory Immunization for Diphtheria Were Not Introduced Until the 1940s

question 19

Short Answer

__and compulsory immunization for diphtheria were not introduced until the 1940s.

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Definitions:

Poorly Sorted

Poorly sorted sedimentary materials are those in which particles of many different sizes are mixed together, indicating a rapid deposition or varied environmental conditions during formation.

Variety Of Rock Types

A classification indicating the diversity of rock forms in a particular area, based on mineral composition and formation process.

Size Of Clasts

The size of clasts refers to the diameter or dimension of individual particles or fragments in sedimentary rocks, indicating the energy of the environment where they were deposited.

Large Clasts

Big pieces or fragments of rocks or minerals found within sedimentary rocks; they can vary in size from pebbles to boulders.