If an Instrument Looks as Though It Measures What It

question 5

Short Answer

If an instrument looks as though it measures what it is supposed to measure,it has _______________.

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Definitions:

State Governments

represent the governing bodies of individual states in a federal system, responsible for local law and order, education, and public health, among other areas.

Standard

An established criterion or model regarded as a basis for comparison or assessment in various fields, including quality, behavior, or regulation.

State Implementation Plan

A document prepared by states in which the emissions to the air from individual sources are limited legally so that the area will meet the national ambient air quality standards.

Clean Air Act

A comprehensive federal law in the United States that regulates air emissions from stationary and mobile sources to control air pollution.