Context: The use of alloys by humans started with the use of meteoric iron, a naturally occurring alloy of nickel and iron. It is the main constituent of iron meteorites which occasionally fall down on Earth from outer space. As no metallurgic processes were used to separate iron from nickel, the alloy was used as it was. Meteoric iron could be forged from a red heat to make objects such as tools, weapons, and nails. In many cultures it was shaped by cold hammering into knives and arrowheads. They were often used as anvils. Meteoric iron was very rare and valuable, and difficult for ancient people to work.

Question: What was one of the first alloys used by humans?
Answer: meteoric iron

Question: What is meteoric iron composed of?
Answer: nickel and iron

Question: What can forged meteoric iron make?
Answer: tools, weapons, and nails

Question: Where does meteoric iron come from?
Answer: iron meteorites

Question: How does meteoric iron come to earth?
Answer: occasionally fall down on Earth from outer space

Question: What was the first man-made alloy used by humans?
Answer: Unanswerable

Question: What was used to separate the iron and nickelin meteoric iron? And
Answer: Unanswerable

Question: What was formed from meteoric iron using hot hammering?
Answer: Unanswerable

Question: What kind of iron was readily available to people?
Answer: Unanswerable