Answer:
Matels like Gold and Silver
Explanation:
The Sumerians were well known for their metalwork, a craft at which they were excellent. Most of the trading done in Ur (Sumerian city-state) as importing happened here. Imported goods hold valuable metals and semi-precious stones such as gold, silver, carnelian and lapis lazuli. Gold maintained for religious functions as well as in serving as personal ornaments, weapons etc.
Supply and Demand is directly linked to Price x Demand.
In Economics, the connection between goods (or services) that are being offered for a certain price and their demand is called Supply Relationship.<u> The Law of Supply states that there is a direct relationship between the prices of products and services and the supply. So, if there is an increase in the price of these goods and services, the supply for those will increase, as well.</u>
They prevented people from leaving China because the desert were so hard to cross.(ANSWER D) Gobi desert was dangerous and dry, water available was little since oasis were rare. The Taklamakan desert has strorms with whip up frequency The day boils hot while the night freeze cold .In addition it has poisonous snake.
