About how many years ago were metals first used?
A) 7,000 years ago.
B) 5,000 years ago.
C) 17,000 years ago.
D) 12,000 years ago.
Correct Answer:
Verified
Q57: A reserve such as a national park,
Q58: One of the causes of mismanagement of
Q59: Which of the following is not a
Q60: Which of the following might result from
Q61: Wilderness in the United States is generally
Q63: Who were the first people to use
Q64: How do forests affect the soil?
A) Trees
Q65: Which of the following is an indirect
Q66: Which of the following is a direct
Q67: As of 2010, the International Union for
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents