So a 1st magnitude star is 2.512 times brighter than a 2nd magnitude star, and 2.5122=6.31 times brighter than a 3rd magnitude star so your answer would be a second-magnitude star is brighter than a third-magnitude star
please mark brainliest if correct
D) remains of dead organisms
yes, they do come from plants and animals but when they're dead.
Planting trees in africa could help reduce severity of climate change.
I'm not 100% sure... But I think D Are Cold Currents. Again, I'm not 100% sure.