Smoke detectors are commonly used in buildings and offices for security and safety purposes. Explain the science of smoke detectors.
Smoke is the gas that is released by burning material like coal and wood. It is visible due to the presence of molecules of carbon in it. Smoke contains sulfur dioxide, nitrogen oxide, and hydrocarbons.
Answer and Explanation: 1
A smoke detector automatically senses the smoke and indicates the presence of fire. It is an electronic protection device that provides protection...
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fromChapter 6 / Lesson 3
In contract law, an offer is defined as a promise of money or an item of value from a promisor in exchange for performance by a promisee. An offer can be revoked, terminated, or negotiated. Learn how an offer works in contract law, the six elements to a contract, and how the court interpreted contract law in the 1893 court case of Carlill v. Carbonic Smoke Ball Company.