<span>Jordan is frightened by the sound of a train whistle. the sound is a "Stimulus".
A stimulus is an effect from outside which affects an action or an activity, sometimes triggering some psychological response. For example in the given example the sound of the train is an external effect (Stimulus) which triggers the feeling of fright in Jordan. </span>
Answer:
It is called the fertile crescent because of it's close proximity to many water sources. The abundant source of fresh water caused the soil to be unusually fertile for the area and allowed for farming.
Explanation:
The states could not agree about the regulation of water flowing out of Lake Lanier.
