Answer:
I believe the answer is. shearing
Explanation
might be wrong though
Delta? idk im sure this is what it is tho.
Answer:
Penumbra: Outer, partial shadow: Sun's disc is only partly blocked, with a bit. They only occur during Full Moon when the Earth is between the Moon and the Sun. Umbra during a total lunar eclipse, these eclipses can be seen from the entire edge of the umbra, you will see an increasing fraction of the Sun peeking out
Explanation: