William Gilbert used a terella in an attempt to explain : B. why compasses point toward the north and south poles of the earth
Terella was used in earlier time to simulate earth magnetosphere before it was replaced by computers
hope this helps
D. He would become Thane of Cawdor and King. The 3 weird sisters told Duncan that his son's would be King not Macbeth which is apart of what motivates Macbeth to kill him.
