When a compass is in the northern hemisphere, the north<span> end of the needle is pulled down towards the </span>Earth<span>, so the south end must be counterweighted to balance it. If a northern-hemisphere compass is used south of the equator, the south end of the needle is pulled down instead.</span>
The main sources that cause air pollution today are things like: Gasses from vehicles, toxic chemicals, smoke from factories, pet hair, and Randon. (Randon is a colorless and odorless gas that is radioactive).
All those things cause: Air pollution, acid rain, and ozone. (Ozone is a toxic form of oxygen).
I know all this because I just learned it and wrote an essay on it yesterday.
Hope I helped!
- Amber
After world war ll, there was a great depression as you should know. caused by a dust bowl which caused crops to be effected into bad ways so farming became hard during this time period. Also they were going through alot of unemployment at the time so yea, it would be farmers facing a rough time or something about how there was unemployment going on and food prices was becoming outragous for people to pay for, so they lowered prices!!
D.) Southern states rejoined the Union
The reconstruction era also allowed African Americans to gain education in the South, however, i dont think there were a lot of African Americans being able to achieve and keep equal rights. The Freed slaves also still was given prejudice, and it will be a wonder if they even go jobs in the South. The southern economy also grew slowly, as most of their lands were destroyed, and they had to rebuild.
hope this helps
