A variety of indicators change color at various pH levels. A properly selected acid-base indicator can be used to visually indicate the approximate pH of a sample. An indicator is usually some weak organic acid or base dye that changes colors at definite pH values.
In United States politics, a government shutdown occurs when Congress and the President fail to pass appropriations legislation funding government operations and agencies. In this case, the current interpretation of the Antideficiency Act requires that the federal government begin a shutdown of the affected activities involving the furlough of non-essential personnel and curtailment of agency activities and services. Since 1976, when the current budget and appropriations process was enacted, t
On the brink of President Obamaâs expected executive action on immigration, rumors of another potential government shutdown are swirling. It was just over a year ago when, on Oct. 1, 2013, the government shut down for 16 days after Congress was unable to agree on a budget for the new fiscal year. Why Washington Is Talking About a Government Shutdown -- Again.