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.
The answer is D. Divergence
economic activities such as industrialization and manufacturing have caused and put a lot of smog into our air which then makes it way back down to the bottom of the ocean or ground
A I think sorry if your wrong :( .
