Heat moves through radiation, convection, and conduction.
Amendments and they were called the first Amendments.
Christianity I think ......
Answer:
unconditioned stimulus
Explanation:
Unconditioned stimulus -
It is the stimulus , which is naturally , unconditionally and automatically triggers a response is referred to as unconditioned stimulus.
This stimulus takes place without any prior thought or knowledge .
For example ,
The smell of the food , automatically makes the person hungry .
Hence, from the given scenario of the question,
The loud noise is an unconditioned stimulus.