Question

what is the term for the study of rock strata?
a strategy
b stratigraphy
c stenography
d sedimentology

Explanation:

The question asks for the term describing the study of rock strata. Stratigraphy is the subfield of geology focused on the layers (strata) of rock, their order, and relationships. Strategy (a) is unrelated to geology; stenography (c) is shorthand writing; sedimentology (d) studies sediment formation, not strata specifically.

Answer:

b. Stratigraphy