What concepts are you talking about...?
A vast majority (meaning alot)
The main cause of the armed conflict between Great Britain and China was related to the trade of Opium. China tried several times to stop illegal commercialization of the drug by foreign traders, among which the British played a key role.
Confrontations rose as both nations took retaliation against each other. China destroyed a large opium cargo stored in a warehouse, causing a growth of antagonism. These wars are known as 'Opium Wars'.
Answer:
Soil
Explanation:
It helps the plants be fresh underground and helps the roots grow
The answer is the first century