<u>Answer:</u> The correct answer is Option D.
<u>Explanation:</u>
A non-polar covalent bond is defined as the bond which is formed between the atoms having no difference in electronegativity values. For Example: 
etc..
In this bond, the electrons are shared equally and 
value is equal to 0.
Hence, the correct answer is Option D.
Answer:8
in the respiratory system
a.
Explanation:
B. False
It was created in 1869
<span>A fast way to separate the mixture would be to use a magnet. Iron is magnetic while copper is not. The second method would be to visually separate them since iron and copper distinctly different colors.</span>
