sustainable – adj. able to be used without being completely used up or destroyed

enterprise – n. a business organization

public sector – n. the part of an economy which is controlled or owned by the government

unit – n. a particular amount of length, time, money, etc., that is used as a standard for counting or measuring; a single thing, person or group that is a part of something larger

innovate – v. to do something in a new way; to have new ideas about how something can be done

firm – n. a business organization

negative – adj. harmful or bad; not wanted

benefit – n. something extra (such as vacation time or health insurance) that is given by an employer to workers in addition to their regular pay