(Question)
Q: Increasing voltage with a higher-volt battery does what to the current? Read this paragraph and choose the correct option from the provided answers: Ohm's law may be easier to understand with an analogy. Current flowing through a wire is like water flowing through a hose. Increasing voltage with a higher-volt battery increases the current. This is like opening the tap wider so more water flows through the hose. Increasing resistance reduces the current. This is like stepping on the hose so less water can flow through it. If you still aren't sure about the relationships among current, voltage, and resistance, watch the video at this URL: http://www. youtube. com/watch?v=KvVTh3ak5dQ. Choices: - blocks it - stops it - decreases it - increases it A:
(Answer)
increases it

(Question)
Q: What layer of earth contains abundant oxygen, which can combine with other elements to create oxide minerals? Read this paragraph and choose the correct option from the provided answers: Earth's crust contains a lot of oxygen. The oxygen can combine with other elements to create oxide minerals. Oxides contain one or two metal elements combined with oxygen. Oxides are different from silicates, because they do not contain silicon. Many important metals are found as oxides. For example, hematite and magnetite are both oxides that contain iron. Hematite (Fe 2 O 3 ) has a ratio of two iron atoms to three oxygen atoms. Magnetite (Fe 3 O 4 ) has a ratio of three iron atoms to four oxygen atoms. Notice that the word "magnetite" contains the word "magnet. " Magnetite ( Figure below ) is a magnetic mineral. Choices: - the core - the surface - the tectonic plates - the crust A:
(Answer)
the crust

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Q: Individuals with sickle cell anemia have crescent-shaped what? Read this paragraph and choose the correct option from the provided answers: Figure 39.21 Individuals with sickle cell anemia have crescent-shaped red blood cells. (credit: modification of work by Ed Uthman; scale-bar data from Matt Russell). Choices: - glial cells - white blood cells - nerve cells - red blood cells A:
(Answer)
red blood cells