Alas is a very common formal word
Answer:Biosphere integrates all living beings and their relationships and interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere. Seaweed is one of the species of marine algae and it includes some types of red, brown, and green macroalgae.
Explanation:
King Arthur showed chivalry and honor above everything else which is what medieval Europe praised as highest values. He was always just and wise in his ruling which is another aspect that the Western civilization values.