Final answer:
No, if your shadow is really long, it does not necessarily indicate that it is evening.
Step-by-step explanation:
Is it true that if your shadow is really long, it is most likely evening? False.
When the Sun is near the horizon, shortly after sunrise or before sunset, a vertical pole or post casts a long shadow. At the highest point in the Sun's motion, when it is in the south, the shadow is at its shortest. After noon, shadows again grow longer as the Sun descends towards the horizon.