Explanation

 (a) A Vending Macine is a movable machine with loading compartment for goods like cigarettes, soft drink, flowers, sweets. It has a slot to put in coins and a lever to pull to collect the goods paid for.

(b) REASONS WHY SUPERMARKETS ARE POPULAR WITH SHOPPERS

(i) Supermarkets operate on self service principle and this gives customers enough time to examine goods and choose what they want.

(ii) Supermarkets have price tags on goods and shoppers can easily calulate the total purchases and budget before getting to the cashier's desk

(iii) The air-conditioners in supermarkets provide a pleasant atmosphere/environment for shoppers to shop comfortably

(iv) Supermarkets offer a wide range of household goods and shoppers can get all they need in one shop

(v) Supermarkets are usually located in residential areas and shoppers can easily get to them

(vi) Customers can easily park their vehicles close to the supermarkets as most of them provide parking spaces

(vii) Some Supermarkets stock fresh goods which normally attract customers. 
 

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