The advantages are that the bags and sand are inexpensive. When empty, the bags are compact and lightweight for easy storage and transportation. They can be brought to a site empty and filled with local sand or soil. Disadvantages are that filling bags is labor-intensive.
So judges could not take away farmers land because the farmers were in debt, most of them veterans who were still waiting money from the government, and they were still being taxed for their land.
Option b because solar power is good for the environment
The answer for this question is: Decrease in environmental impact
In order for people in China to achieve middle-class status, they need to open up a lot of business to compete in the market.
This result in a lot of waste excreted to the environment during the production process which cause a lot of environmental impact in that country.
