A student is looking for information about the periodic table in a chemistry textbook. Which of the following textbook features should the student use to find the pages where this topic is discussed?

A. Index

B. Glossary

C. Appendix

D. References

Answer Explanation:

The student should use the index to find information about the periodic table in a chemistry textbook. The index lists keywords, topics, and page numbers where those topics are discussed in the textbook, making it a helpful tool for quickly locating specific information.

Therefore, the Correct Answer is A.

Q #1: What is all this talk of cicadas lately in the United States? You might be wondering why the media has featured it, but in fact, the discussion about cicadas has emerged about as predictably as the cicadas themselves from their underground refuge. Let's get oriented with some background on cicadas. What is a cicada? A typical definition will at least tell you that the cicada is a large, loud insect with long transparent wings, mostly found in warm countries. A more detailed response might also inform you that cicadas have short antennae and wide-set eyes that jut out, with delicate, translucent wings - and that not only is the cicada loud, but few creatures make a louder sound. In fact, it is male cicadas that are the noisy ones, to the tune of 80 to 100 decibels, which is like the roar of a loud engine. This is because male cicadas make a strident, high buzzing by vibrating two membranes on their abdomen called tymbals, effectively turning its body into a kind of echo chamber or drum. Female cicadas cannot replicate the buzzing, though they respond with a clicking sound when they are ready to mate. Although there are several species of cicada, mating typically takes place in trees whereafter the female deposits the eggs into the bark. When the eggs hatch, the larval cicadas, called nymphs, drop to the ground and burrow. They then live as nymphs for most of their lives over 6 feet underground, with both male and female cicadas dying within weeks of their emergence from the soil. This is particularly true for North American cicadas, especially the Magiccodo, or periodical cicadas, which regularly... Which of the following best describes the theme of this passage?

A. Media attention to cicadas can also bring attention to climate change.

B. Media attention to cicadas is as predictable as cicada life cycles.

C. Disinformation in the media is responsible for conflicting information about the cicada life cycle.

D. Disinformation in the media falsely identifies climate change as the root cause of the cicada's near extinction.

Answer Explanation

The passage discusses how media attention to cicadas has emerged predictably, much like the emergence of cicadas themselves from underground, indicating a parallel between the cyclical nature of cicada life cycles and the predictability of media attention to them.
Q #2: Gold is a widely known metal, often used for making jewelry. Pure gold is called 24-carat gold, but there is also 14-carat gold. Because gold is a soft metal, it is sometimes combined with another metal to harden it, such as copper. Fourteen-carat gold is named as such because 14 out of the 24 carats, approximately 60%, is gold and the remaining 10 carats, or 40%, is some other metal. Which of the following is the purpose of the passage above?

A. To analyze

B. To inform

C. To compare

D. To recommend

Answer Explanation

The purpose of the passage is to inform the reader about gold, its purity levels (24-carat and 14-carat), and how it is combined with other metals to create jewelry.
Q #3: A Day with Humpbacks I sit on the headlands of Neah Bay, Washington, and watch a mother humpback and her calf slip through the icy Pacific waters. I recognize this whale by her distinctive tail pattern, as unique to this humpback as my fingerprints are to me. Once, heavy hunting using harpoons extirpated the species from the region, and only a ban on whaling allowed populations of humpbacks to recover. As this gray female rises to the surface, she exhales, sending up a spout nearly 20 feet high. She rolls on her side and lifts her scalloped-edge flipper in salute, then slaps it on the water. Fadjust my lens and take my shot. This is the only type of whale hunting I find acceptable with a camera. Which of the following statements about the passage is true?

A. In the passage, the writer argues the benefits of photographing whales to enable their identification.

B. In the passage, the writer describes taking many photographs as the whale frolics in the icy Pacific Ocean.

C. In the passage, the writer describes the whale surfacing, exhaling, and slapping her flipper on the water.

D. In the passage the writer argues that beluga whales are so endangered, you should only hunt them with your camera.

Answer Explanation

The passage indeed describes the author's observation of the humpback whale surfacing, exhaling, and displaying specific behaviors like slapping its flipper on the water.

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A student is looking for information about the periodic table in a chemistry textbook. Which of the following textbook features should the student use to find the pages where this topic is discussed?

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