Answer:
may be no 4 is the answer
Https://www.bbc.co.uk/bitesize/guides/zjbj6sg/revision/3
Hope this helps.
Answer:
I'd say the Great Wall of china
Explanation:
built over 2300 years ago, it's over 20,000 miles long!
A producer can include someone involved in the mining industry. Some of the factors to be considered before production starts are what are the grade and tonnage say of the metals involved? Also, the geometry of the deposit is important to know how to develop it ie open pit or underground or both. Also the economics must be considered ie what is the world market price of the metal in question and the prognosis for its future price?
They were American immigrational laws signed by president adams