Concept:
Archaeological excavation is a systematic scientific process used to uncover and study material remains of past human cultures.
Excavation follows carefully planned stages such as:
• Site preparation,
• Layout planning,
• Removal of deposits,
• Stratigraphic analysis,
• Recovery and documentation of artifacts.
The sequence is extremely important because improper excavation may destroy archaeological evidence permanently.
Step 1: Understanding Grid Layout.
Before excavation begins, archaeologists first prepare:
\[
Grid layout
\]
This step involves:
• Dividing the site into squares,
• Establishing coordinates,
• Ensuring systematic excavation,
• Maintaining accurate recording.
Without a grid system, scientific excavation becomes difficult.
Thus:
\[
B = \text{First step}
\]
Step 2: Understanding Removal of Overburden.
After marking the excavation grid, archaeologists remove:
\[
Overburden
\]
Overburden refers to:
• Upper soil layers,
• Debris,
• Vegetation,
• Surface deposits not directly related to occupation.
This exposes the cultural layers beneath.
Therefore:
\[
A = \text{Second step}
\]
Step 3: Understanding Identification of Stratigraphy Layers.
Once the upper deposits are removed, archaeologists identify:
\[
Stratigraphic layers
\]
Stratigraphy helps in:
• Determining chronology,
• Understanding cultural succession,
• Separating occupation phases,
• Interpreting site formation processes.
Thus:
\[
D = \text{Third step}
\]
Step 4: Understanding Recovery of Artifacts.
After proper stratigraphic identification, archaeologists recover:
\[
Artifacts
\]
This includes:
• Tools,
• Pottery,
• Bones,
• Ornaments,
• Cultural remains.
Scientific recovery ensures:
• Context preservation,
• Accurate dating,
• Reliable interpretation.
Hence:
\[
C = \text{Final step}
\]
Step 5: Writing the final sequence.
The correct excavation order becomes:
\[
B \rightarrow A \rightarrow D \rightarrow C
\]
Hence, the correct answer is:
\[
\boxed{\text{(B) B-A-D-C}}
\]