The correct answer is World's Worst Air Quality. These cities has the worst air quality in the world, since these two cities suffer from air pollution due to the overuse of cars, the exhaust of cars expels a lot of smoke that forms within the air that causes bad quality and increases particulates in the air, which results to respiratory illnesses among the citizens of the said countries/states. <span />
The north end of Earth's axis is tilted toward the sun from March 21 until
September 21 ... Spring and Summer in the northern hemisphere, which
includes North America.
I think 2,5,1 but im not sure
Answer : scientists determine the absolute age of a rock in millions of years before present rather than just the age of the rock relative to the rock units around it. This information helps geologists develop more precise geological history models for the rocks and regions they study.
Explanation: