When archaeologists study an excavation site objects found closer to the surface are?
a. often as damaged as those found below them
b. impossible to date with any accuracy
c. unlikely to contain radioactive material
d. not as old as those found in deeper layers

D. not as old as those found in deeper layers

Explanation:

over time dirt moves and makes many layers that cover objects on the ground

D. not as old as those found in deeper layers

Explanation:

The more buried underground a fossil is, the older it is.

well its is frequent rain

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american political culture includes a plenty of focus views and preferences. not all westerns experience the same opinions, of course, but the large preponderance promises to these general ideas, including equality, justice, freedom, individualism, integrity, and difference.

the united states is a democratic republic. residents elect representatives to governmental, nation, and local administration; those deputies create the regulations that command u.s. community. although emptiness in u.s. law needs it, in usage, the administrative system is ruled by executive factions.