If a test measures what it is designed to measure, then it has this.
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Explanation:
Rock Strata: <u><em>Layer(s) or sedimentary, rock, soil or igneous rock that were formed on Earth's surface</em></u>
Each layer of the Rock Strata contains different kind of rock, each compacted on top of each other creating a canyon, landform or plateau.
Rock Strata (plural) will always be horizontal, not vertical. The rocks are not smashed together in columns, they are smashed due to gravity, and gravity smashes the roc straight down, causing them to compact.The crust of the strata will be made up of igneous and metamorphic rock.