<span>Because they don't know any better. Aspirin is a great molecule, but it shouldn't be considered first-line therapy for stomachaches.</span>
The Cunninghams and Ewells from the novel To Kill a Mockingbird are both poor and belongs to the lowest circle of Maycomb society yet they differ in such a way that Walter Cunningham pays Atticus his services in goods than money. They are also a step above Ewells as they work harder in their land than just rely on welfare.
Heated air inside a ballon causes it to rise up in the sky because of helium,helium is the second Antony number that has the lowest mass maybe when the air cools the balloon it causes osmosis to make it change its mass.
Answer:
High in the atmosphere, air pressure decreases. ... A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. As the air rises, the water vapor within it condenses, forming clouds and often precipitation.