The core is composed of pure nickel and iron.
举一反三
- In addition to iron and carbon, list the other elements that may be found in a grey cast iron and describe their effect on the properties of a grey cast iron.
- Mostconductingmaterialssuchascopper,aluminum,iron,nickel,andtungsten（）. A: increaseinresistancewithincreasedtemperature B: increaseinresistancewithdecreasedtemperature C: decreaseinresistancewithincreasedtemperature D: increaseinconductancewithincreasedtemperature
- Passage Three What kind of minerals can we find on the ocean floor A: Iron and copper. B: Gold and copper. C: Nickel and bronze. D: Iron and bronze.
- Both nickel and iron are whitish metals ____. A: that are attracted by magnets B: that magnets are attracted by them C: are attracted by magnets D: magnets that attract them
- The White Cliffs of Dover are composed mainly of: A: Calcium Carbonate B: Silicon Dioxide C: Mangan Oxide D: Iron Oxide