Questions

Answer:  K

Explanation:  In each row, the product of the left and right hand numbers equals the sum of the numerical values of the three letters.

Product formation : It can be defined as putting different products and services together to form a product for the satisfaction of customer. For e.g. Hospitality is a product formation which is not made from a single item. 

Service brigade : Team of staffs involved in providing service

The Moment of Truth: It is the actual time when customer interacts with service staff. It is the moment of contact when no management has control. It is the motivation, skill, tools of the service and expectation, behavior, expectation of the customer determines the quality of the service.

GUI stands for Graphical User Interface.

A Graphical User Interface is a computer interface that allows users to interact with a device through graphical elements such as pictures and animations, as opposed to text-based commands.

Darjeeling is in West Bengal and other two are in Himachal Pradesh.

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

Irrigation canals are generally aligned along ridge lines.

Eukaryotic cells all have a nucleus. Eukaryotes are organisms that are multicellular, although there are some examples of single cellular eukaryotes. So eukaryotic cells can be either cell with a nucleus or a eukaryotic organism's cell.

The most important feature to judge whether it has nucleus membrane.

And for other choices, they are the common features of eukaryote and prokaryote.