Final Answer:
The deposits of the terminal moraine can best be described as unsorted and unlayered. Option D is the answer.
Step-by-step explanation:
A terminal moraine is a type of glacial landform created at the furthest point reached by a glacier's advance. The deposits of a terminal moraine are characterized by a mixture of various-sized sediments, including rocks, gravel, sand, and clay. These deposits are unsorted because the glacier picks up and transports a heterogeneous mix of materials as it moves. Additionally, the sediments are unlayered, as they are typically jumbled together without a distinct stratification.
Option 4, "Unsorted and unlayered," accurately captures the nature of the deposits found in a terminal moraine, reflecting the random and chaotic arrangement of materials left behind by the glacier's movement.
Option D is the answer.