1) A Car engine.............. Hope it helps, Have a nice day :)
Answer:
D
Explanation:
Cell membrane, also called plasma membrane, thin membrane that surrounds every living cell, delimiting the cell from the environment around it.
Answer:
Iron (Fe)
Explanation:
The reactivity series shows a series of metals reactivity from lowest to highest. Based on the arrangement of metals in the reactivity series, iron is placed above tin and below zinc, this means that iron is more reactive than tin but less reactive than zinc. This means that iron would displace tin ions in a solution whereas zinc would displace iron ions in a solution.
The reactivity of metals is due to the stability of metals in their electron configurations as atoms and as ions.
Iron is the element found in the liver
Its D. 13-14 billion years
