1. Read a text about drinking straws. Do you want to maintain healthy teeth? Avoid excessive consumption of sugary and acidic drinks, like soda and lemonade. Both sugar and acid can erode protective tooth enamel, paving the way for cavities and increasing the risk of tooth sensitivity. It's best to limit these beverages to special occasions, such as dining out. And when you do indulge, use a drinking straw: research shows that straws can minimize contact between liquids and teeth. Bear in mind that some restaurants intentionally keep their straws out of sight, in the hopes that customers will forget about them—so don't forget! Request a straw from your server, or bring your own straws along whenever you dine out. Your teeth will thank you later. Select the two details that are included in the text (2 points) Responses Straws are now a regularly dispensed item at many restaurants. Straws are now a regularly dispensed item at many restaurants. Staff at some restaurants avoid automatically providing straws to customers. Staff at some restaurants avoid automatically providing straws to customers. Using a drinking straw reduced exposure to beverages that hard teeth. Using a drinking straw reduced exposure to beverages that hard teeth. Discarded straws present hazards for marine wildlife. Discarded straws present hazards for marine wildlife. Question 2 2. Read the following excerpt. It is adapted from a 1921 speech that Marie Curie, a physicist and chemist, delivered at Vassar College. Now, the special interest of radium is in the intensity of its rays which is several million times greater than the uranium rays. And the effects of the rays make the radium so important. If we take a practical point of view, then the most important property of the rays is the production of physiological effects on the cells of the human organism. These effects may be used for the cure of several diseases. Good results have been obtained in many cases. What is considered particularly important is the treatment of cancer. But we must not forget that when radium was discovered no one knew that it would prove useful in hospitals. The work was one of pure science. And this is a proof that scientific work must not be considered from the point of view of the direct usefulness of it. It must be done for itself, for the beauty of science, and then there is always the chance that a scientific discovery may become like the radium a benefit for humanity. Adapted from Marie Curie, "On the Discovery of Radium" Based on the excerpt, what is the purpose of Marie Curie's speech? (2 points) Responses a. To explain the scientific properties and diverse uses of radium a. To explain the scientific properties and diverse uses of radium b. To demonstrate both the benefits and dangers of chemistry. b. To demonstrate both the benefits and dangers of chemistry. c. to illustrate the importance of scientific inquiry for its own sake.
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