Answer:
A. Distinction of the various rings of saturn.
Explanation:
The important discoveries of Hubble space telescope were on discovering the age of the universe, finding the depths and expanse of the universe, along with researching on the black holes and finding visible wavelength images. Finding planets in the inner solar system like Pluto, and an outer solar system like Exoplanets.
In architecture, form refers to the shape or configuration of a building.
B. North Sea, it is well known for its fierceness. Throughout the year there are strong storms that hit the coasts of the countries that surround it.This huge raft of seawater of about 750,000 square kilometers, an "arm of the Atlantic" we could say, receives marine currents from the other side of the world and is stirred up affecting the British Isles, Norway, Denmark, Germany, Holland, Belgium and France with big tides and scary storms.