(a) Food Adulteration refers to the process by which the quality or the nature of a given food is reduced through addition of adulterants or removal of vital substance. Food adulterants are inferior chemical substances present in food that cause harm or is unwanted in the food. A common example of food adulteration is mixing of papaya seeds in pepper. Mixing of sweet potato in ghee is another common example of food adulteration. 

(b) Persuasion refers to the process by which a person’s attitudes or behaviour are influenced by communication. Persuasion helps in changing the hostile opinion. It helps in understanding the needs and expectations of customers from a particular product and also addressing their queries. 

(c) Advantages of opening a bank account : 

• There is no need to keep huge cashes in business place or home.

• The cash deposited in the bank earns an interest. 

(d) Parity pricing means increasing selling price of a product or service proportionately or rather by the same amount as the increase in the prices of raw materials or inputs. 

(e) Office and Administrative overheads are those costs which are incurred for the overall administrative work of the organization. 

They include : 

• Indirect materials such as office supplies, stationery and printing items, brooms etc. 

• Indirect labour such as salaries payable to staff. 

• Indirect expenses such as lighting, rent/insurance of office.