Exams

The plural form of ‘Poor’ is ‘Poor’. ‘Poors’ is incorrect. Also, according to the subject verb agreement, ‘interests’ is the correct form of verb.

Thus, the correct formation would be, ‘We are doing this in the interests of the poor’.

Polyglot - A person who knows or speaks many languages.

Linguist - A person who speaks  foreign languages.

Given Equation is 

Mg + O2 → MgO

Balancing the Chemical Equation is nothing but Conservation of Matter. As Matter is Neither created nor Destroyed, it must be conserved.

Here we have 1 Mg and 2 O on the left side and 1 Mg and 1 O on the right side

To balance that, add 1 Mg on the left side so that it becomes 2 Mg and 2 O on the left side

i.e,

2 Mg + O2 → 2 MgO

Here it has 2 Mg & 2 O on the left side and 2 Mg and 2 O on the right side and the Chemical equation is Balanced.

Chloroquine is a medication used to prevent and to treat malaria.