Lisa sees the image below as she researches the behavior of light. A clear glass of water with a metal spoon inserted halfway into it. There is an offset between the top half of the spoon and the bottom half of the spoon. Which behavior is the spoon in the top image most likely being used to illustrate?

When employing the core learning system, reading text books and attending class are important ways to knowledge.

How can changes in technology or consumer demand make it difficult for people to get jobs? by changing the number or kind of jobs available by making it possible for some people to work fewer hours by making it difficult for people to buy what they want by creating a demand for things that are not available

Which us president proposed a decimal based measurement system for the us