Answer:
The Great Wall of China was constructed from the 7th Century.
Explanation:
BC by the Chu State and lasted until 1878 in the Qing Dynasty. The most remaining we see today was built in the Ming Dynasty about 600 years ago.
The adoption of cuneiform by other cultures from the culture that invented it is an example of cultural diffusion.Cultural diffusion is a process of some cultural feature, skill or idea spreading from one culture to another.
The Erie Canal made westward expansion possible by connecting the Hudson River to Great Lakes. This connection made it easier to move goods west.
We must improve water catchment and storage facilities, whilst alsodeveloping more cost effective water cleaning units, such as sterilisation and desalination.