Which is a unique feature of jupiter?

a.
the least dense planet in the solar system

b.
the largest, most massive planet

c.
rotates on an axis tilted entirely sideways

d.
the most distant planet from the sun

I would say the answer is A, because Jupiter is the least dense planet in the solar system. It is the largest planet in our solar system, but that is not what answer choice says. Jupiter does not rotate on an axis completely sideways, that is Uranus, and is not the most distant planet from the sun.

Yes it would be a physical change.