Answer:
C
Explanation: I learned this in 7th grade
Answer: The brightness of our if betelgeuse were to explode as as a supernova would by getting the ratio betelgeuse to sirius. Which would then be:
Apparent brightness of Betelgeuse
÷ Apparent brightness of Sirius=
6.9×10^4 Lsun.
Almost 60% of Canada's total imports (2017) came from the US
I hope this helps
-Ayden
