Colonists made soap from an animal fat and potassium hydroxide. In interaction of fat and alkali there is a hydrolysis reaction. At the same time salts of a potassium and alcohols are formed.
1. sewage system - facility consisting of a system of sewers for carrying off liquid and solid sewage. sewage works, sewer system. facility, installation - a building or place that provides a particular service or is used for a particular industry; "the assembly plant is an enormous facility"
The last option is the most accurate
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Answer:
Plants adapt to the environment by modifying their leaves, stem and roots.
Explanation:
<span>The correct option is C. On Earth's surface directly above the earthquake's focus.
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<span>The hypocenter, or focus is the point where the earthquake really starts. It's located under the surface in the tectonic plate boundary. </span><span> <span> <span> </span> </span> </span>
The epicenter is the point on the surface of the earth that's directly above the hypocenter.
