Give economic terms:
(i) A desire which is backed by willingness to purchase and ability to pay.
(ii) Deposits that are withdrawable on demand.
(iii) Wear and tear of capital assets, due to their use in the process of production.
(iv) Elasticity resulting from a proportionate percentage change in the quantity demanded due to a proportionate percentage change in price.
(v) The difference between the value of a country’s exports and imports for a given period.