Answer:
D- Iron
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Iron is the ultimate nuclear “ash,” from which no nuclear energy can be extracted.
Answer:
Both a torch and a star are considered to be luminous objects. In order for us to see an object that is non-luminous, it must reflect some of the light it receives from a luminous source, such as the Sun.
Explanation:
A. oxygen atom
H2 O1
There are 2 hydrogen atoms and 1 oxygen atom