Answer:
Because people during the reconstruction were fighting due to slavery (the civil war) or the rights of african americans. The civil right movement was like a continuation or amendment of that reconstruction era to guarantee people of all races the same rights and abolish racial segregation; this actually never came to light when slavery was abolished and the reconstruction era ended.
B I think, slavery increased tons in the south because of Rice and other cash crops. The south was big on agriculture.
Many Chinese laborers accepted lower wages.
When the Chinese came to America, they were simply looking for a better life and they would take any job that was available to them, even jobs that paid dirt wages. Union members didn't necessarily like the Chinese because they were trying to bargain for higher wages and with the Chinese accepted very low wages, it was hard to do that.
The tiny invaders being discussed in the article are plants. They are considered invaders because they came from other countries, but are now threatening the native plants. People brought them in because they wanted to make their gardens and yards beautiful because the plants are very rarely found locally.
