it is visible because the earth is rotating, and in the morning, the earth is facing the sun
The sun is in the eastern part of the sky in the morning as it rises in the east and sets in the west.
the sun and the baby blue sky
During the morning, you can see the sun in the sky, while at night, the moon is visible.
Because Venus, along with Mercury, are inner planets it never appears too far from the sun. In fact Venus never strays more than 47 degrees from the sun. That makes it always appear in the western sky after sunset or in the morning sky in the east at dawn, and that's where our crescent moons always appear.
it appears lowest in the sky at dusk
no
Earth and Venus. From Earth Venus and Mercury are planets visible as "morning" and "evening" stars. From Venus, Mercury would appear in the morning and evening sky. From Mars I would expect Earth, Venus, and Mercury to all be morning and evening "stars."
A morning shadow is cast at your feet, but as the day progresses and the sun rises higher in the sky, the shadow shortens and almost disappears in the midday sun.
it is a metaphor
The sun rises in the East and sets in the West.
When the sun sets, you can watch the sky as the stars and moon appear.
Its the same phenomenon that the moon shares, where people believe it is larger or smaller from time to time. It is an illusion, they are not. They appear to be larger when closer to the horizon (morning for the sun) because it appears closer the ground, the trees and buildings around us, they appear closer and therefore larger. Up high, where is next to it to relate to, they appear further away, and therefore smaller.