Answer:
D. Trad-able emissions permit.
Explanation:
When a city is able to buy and sell the rights to this total discharge level with other cities, then it is called as trad-able emissions permit. Trad-able emissions permit are well used for controlling the emissions and thereby the overall pollution is also controlled. It also provides permission for an industry or city to pollute in a controlled amount for a given time period.
When surplus <span>funds are set aside (idling the excess) and the government does not spend the money nor apply it to past debt, this action does not cause expansion or contraction.
That statement is true. Expansion or contraction happens when the amount of Government budget is accumulated or decreased as the result of last year's operations</span>