I believe the answer is depth!
How many pets does each of my friends have?
Explanation:
you're comparing multiple different people's pets
Answer:
When the cup is filled with water, the penny disappears. This happens because of refraction. When light bounces off of an object, it reaches our eyes and we see the object. As light travels through the sides of the glass and the water, it's refracted and never reaches our eyes, which makes the penny seems to disappear.
Explanation:
When the cup is filled with water, the penny disappears.
Answer:
They could be a sphinx, feathered serpent, or lion.
Explanation:
I'm not sure how to explain it, but I did a little research, and found a good answer. I really hope this helps!