Answer the following question given this paragraph: The anodes in each cell of a rechargeable battery are plates or grids of lead containing spongy lead metal, while the cathodes are similar grids containing powdered lead dioxide (PbO2). The electrolyte is an aqueous solution of sulfuric acid. The value of E for such a cell is about 2 V. Connecting three such cells in series produces a 6 V battery, whereas a typical 12 V car battery contains six cells in series. When treated properly, this type of high-capacity battery can be discharged and recharged many times over. As the cell is discharged, a powder of PbSO4 forms on the electrodes. Moreover, sulfuric acid is consumed and water is produced, decreasing the density of the electrolyte and providing a convenient way of monitoring the status of a battery by simply measuring the density of the electrolyte. Q: The anodes in each cell of a rechargeable battery are plates or grids of lead containing spongy lead metal, while the cathodes are similar grids containing powdered what? Choices: - carbon dioxide - straight dioxide - coal - lead dioxide A:
lead dioxide
(Question)
Answer the following question given this paragraph: The monosaccharide glucose is broken down through a series of enzyme-catalyzed reactions known as glycolysis. Q: The monosaccharide glucose is broken down through a series of enzyme-catalyzed reactions known as what? Choices: - Digestion - Respiration - photosynthesis - glycolysis A:
(Answer)
glycolysis
Ques: Answer the following question given this paragraph: Most of Earth's water is salt water in the oceans. As seen below, only 3 percent of Earth's water is fresh ( Figure below ). Freshwater is water that contains little or no dissolved salt. Most freshwater is frozen in ice caps and glaciers. Glaciers cover the peaks of some tall mountains. For example, the Cascades Mountains in North America and the Alps Mountains in Europe are capped with ice. Ice caps cover vast areas of Antarctica and Greenland. Chunks of ice frequently break off ice caps. They form icebergs that float in the oceans. Q: In what type of body of water is most of the earth's water located? Choices: - streams - rivers - seas - oceans A:
Ans: oceans
(Q).
Answer the following question given this paragraph: To the extent that behaviors are controlled by genes, they may evolve through natural selection. If behaviors increase fitness , they are likely to become more common over time. If they decrease fitness, they are likely to become less common. Q: To the extent that behaviors are controlled by what, they may evolve through natural selection? Choices: - rna - dna - mutation - genes A:
(A).
genes
Ques:Answer the following question given this paragraph: Aqua regia, a mixture of nitric acid and hydrochloric acid, is one of the few materials that will dissolve gold. This material, translated to "royal water" in English, was named so because it could dissolve the royal metal gold. First noted in the fourteenth century, aqua regia could be used to help ascertain whether a particular material was actually gold or was some trickery of the alchemist. Nitric acid by itself will not dissolve gold, but will in combination with hydrochloric acid. The chemistry of the process is rather complex, with both acids reacting with the metal to form soluble gold compounds. The gold can be recovered from the solution, making the process useful for purification purposes. Q: What a mixture of nitric acid and hydrochloric acid? Choices: - crystal regia - acidus regia - sulfate regia - aqua regia A:

Ans:aqua regia
Answer the following question given this paragraph: Figure 17.17 Adrenal Glands Both adrenal glands sit atop the kidneys and are composed of an outer cortex and an inner medulla, all surrounded by a connective tissue capsule. The cortex can be subdivided into additional zones, all of which produce different types of hormones. LM 204. (Micrograph provided by the Regents of University of Michigan Medical School ©️ 2012). Q: Which glands sit atop the kidneys and are composed of an outer cortex and an inner medulla, all surrounded by a connective tissue capsule? Choices: - gonads - salivary - thyroid glands - adrenal A:
adrenal