Why is weekly market called so?

Shopkeepers in a weekly market are:

From where can we buy the medicines?

What is an enclosed shopping space having shops, restaurants and cinema theatres?

What does refer to buying and selling in large quantities ?

What is a series of markets that is connected like links in a chain because products ‘ pass from one market to another?

What type of items are mostly sold in the malls?

Who finally sell goods to consumer?

Seller of weekly market earn ___ than the seller of the mall.