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
If the government does shut down, it would be the first time it has happened in more than 17 years. That previous shutdown, sparked by a budget battle between Democratic President Bill Clinton and a Republican Congress, lasted for 21 days. CNN Poll: GOP would bear the brunt of shutdown blame While the military will remain on duty, as will many essential public safety, health and welfare operations, many government offices will close.