Correct Answer: D

Rationale: Jensen should check the 900 section of the library for general information about ancient Greece. In the Dewey Decimal Classification system, the 900 section covers history and geography. Ancient Greece falls under the category of history, so Jensen can find a wide range of resources related to ancient Greece in this section, which will provide him with a good starting point for his project. Choice A (100) refers to Philosophy and psychology, Choice B (200) to Religion, and Choice C (400) to Languages, which are not directly related to ancient Greece, making them incorrect options.

Correct Answer: C

Rationale: The passage delves into the relationship between magnesium intake and health outcomes, highlighting how deficiencies in magnesium can lead to various health issues. It discusses how different factors, such as gastrointestinal disorders or dietary habits, can cause magnesium depletion and its subsequent effects on the body. This focus on exploring the cause-and-effect connections between magnesium levels and health conditions aligns with the characteristics of a cause and effect essay, making choice C the most appropriate. Choices A, B, and D are incorrect because the passage does not focus on comparing different concepts, providing definitions, or persuading the reader of a particular viewpoint.

Correct Answer: A

Rationale: The correct answer is A, the tofu-mushroom-spinach lasagna. Mirella is an ovo-lacto vegetarian, meaning she eats eggs and dairy but avoids animal flesh. This dish meets her dietary requirements as it is a vegetarian option that contains tofu and cheese for protein. Additionally, since Mirella has a wheat allergy, she can choose a lasagna recipe with alternative noodles or omit noodles altogether. Choice B, the veggie burger, may contain wheat in the bun, which is not suitable for Mirella. Choice C, salmon with cream sauce, contains animal flesh and is not vegetarian. Choice D, stuffed baked potato with vegetable soup, may include wheat products in the soup, making it unsuitable for Mirella's wheat allergy.

Correct Answer: A

Rationale: The word 'cation' refers to a positively charged ion, which is an atom or molecule that has lost one or more electrons. It is not related to nutrients, symptoms, or supplements. Therefore, the closest in meaning to 'cation' among the given choices is 'element.' In the provided extract, it mentions that cations like magnesium can affect the body's ability to absorb other cations, including calcium and potassium. This further emphasizes that 'cation' is related to elements rather than nutrients, symptoms, or supplements.

Correct Answer: C

Rationale: Source C provides the best material for the assignment because it emphasizes the importance of preserving wetlands, acknowledges the endangered status of wetlands, and suggests a solution involving private donors. The source highlights the crucial issue at hand - the disappearance of wetlands - and proposes a practical solution, making it a reliable and relevant source for an assignment on wetlands conservation. Choice A focuses more on the profit aspect rather than conservation. Choice B blames greedy businesses without offering a practical solution. Choice D discusses the relationship between businesses and wetlands but lacks a clear solution for conservation compared to Source C.