Questions

Clove the commonly used spice which is obtained from the flower buds of a tree in the family Myrtaceae, Syzygium aromaticum.

Frontier Ethic is Spending Earth's assets at the cost of losing resource capital. A frontier ethic assumes that the earth has an unlimited supply of resources. It is the notion of disregarding the Earth for the benefit or gain of man.

If resources run out in one area, more can be found elsewhere or alternatively human ingenuity will find substitutes. This attitude sees humans as masters who manage the planet. It is completely Anthropocentric.

A ridge ine is a line formed along the highest points of a mountain ridge.

Irrigation canals are generally aligned along ridge lines.

A Libraury. It has more number of story books in it to read.

"Bacteria take DNA from their environment" is what best describes transformation in bacteria.

CBA – Collective Bargaining Agreement is the result of collective bargaining procedure. 

These agreements can be in one of the two forms: 

i.) Procedural agreement

ii.) Substantive agreement

Procedural agreements – They usually deal with the relationship between employees and employers to resolve individual and group issues. These are usually filed in the company’s rule book. 

Substantive agreements – This kind of an agreement deals with specific issues like basic pay, leave policy, bonus payment etc.

The logic in this puzzle is summing the result of [subtraction of upper two digits] & [addition of lower two digits] 

Hence, the result is  

(5 - 3) + (2 + 8) = 2 + 10 = 12.