Why Is Gravel Often Used as a Filler in Concrete

question 23

Multiple Choice

Why is gravel often used as a filler in concrete?

• A) Because it is hard.
• B) Because it is inexpensive.
• C) It is easily deformable.
• D) Because it is a granite.
• E) Gravel is not a filler in concrete.

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Definitions:

Sensory Register

The initial stage of memory, where sensory information is stored for a very brief period.

Distractor Studies

Research methods that involve using irrelevant stimuli or information to examine how attention is diverted or focused during a task.

Interference Theory

A theory explaining that forgetting occurs because memories interfere with and disrupt each other, either by a process of proactive or retroactive interference.

Decay Theory

A hypothesis in psychology that suggests the reason for forgetting is the automatic fading or weakening of the memory trace over time.