If a Sandstone Lies on Top of a Shale,________

question 3

Multiple Choice

If a sandstone lies on top of a shale,________.

• A)the shale must be older,according to the principle of superposition
• B)the sandstone must be older,according to the principle of superposition
• C)the shale must be older,according to the principle of components
• D)their relative ages cannot be determined from the information given

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Definitions:

Peptide Structure

The specific arrangement of amino acids, linked by peptide bonds, which determines the composition and characteristics of a peptide.

Dipeptide

A molecule composed of two amino acids linked by a peptide bond.

Ala-Ser

Represents a dipeptide made of two amino acids, alanine and serine, linked by a peptide bond.

2,4-dinitrofluorobenzene

A chemical compound featuring a benzene ring substituted with two nitro groups (NO2) at the 2 and 4 positions and a fluorine atom at the 1 position.