The opposite of an acid is a base, and that's exactly what an antacid is. Antacids make you feel better by increasing the pH balance in your stomach. The pH system is a scale for measuring the acidity or alkalinity of a given environment (in this case, your stomach). The scale goes from 0 to 14. A pH of 7 is neutral. Below 7 is acid. Above 7 is alkaline.
Economy is the large set of inter-related economic production and consumption activities which aid in determining how scarce resources are allocated.
Economics is the study of the production, distribution, and consumption of goods and services. 1  Resources are the inputs used to produce outputs. Resources may include any or all of the following: 2  Land and other natural resources. 3  Labor (physical and mental) 4  Capital, including buildings and equipment. 5  Entrepreneurship.