One afternoon, Carl was sent to the principal's office. Do you know why you're here? asked the principal. Is it about this morning? Carl asked. Your teacher says that you disrupted class, hit another student, started a food fight at lunchtime, and ran in the hall.
Oh, that's a relief, said Carl, I thought maybe you figured out I was the one who broke your windshield.
The purpose of the story is
a. to demonstrate how a school principal solves a discipline problem.
b. to entertain the reader with a story about a principal and student.
c. to analyze how a student feels about being questioned.
The tone of the paragraph is
a. instructive. b. amusing. c. analytical.
Question 2
A homogeneous mixture also contains two or more substances and can be separated by physical methods. A saline solution is a homogeneous mixture of salt and water. Air is a homogeneous mixture of nitrogen, oxygen, and other gases. Unlike a heterogeneous mixture, a homogeneous mixture is uniform throughout the sample. Homogeneous mixtures may, however, have properties that vary from sample to sample. For example, samples of seawater from the Pacific Ocean and the Dead Sea have different properties. Seawater from the Dead Sea has a higher density and greater concentration of dissolved minerals.
a. cause-effect and example
b. definition and example c. example and explanation
The principal components of a spectrophotometer
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