Which if the following statements correctly describes why society must carefully consider the use of biotechnology? a biotechnology is a relatively new scientific field b biotechnology can impact individuals and the environment c the methods of genetic engineering are not well understood d artificial selection is and example of biotechnology

Answer : The oxidation number of magnesium in MgO is, (+2).

Explanation :

Oxidation number : The oxidation number represent the number of electrons lost or gained by the atoms of an element in a compound.

Oxidation numbers are generally written with the sign (+) and (-) first and then the magnitude.

When the atoms are present in their elemental state then the oxidation number will be zero.

The oxidation number of  oxygen (O)  in compounds is usually -2.

The given compound is,

Let the oxidation state of 'Mg' be, 'x'

Therefore, the oxidation number of magnesium (Mg) in MgO is, (+2)