Answer the following question given this paragraph: Zinc is an important component of many kinds of batteries. This metal is mined as zinc compounds, one of which is zinc carbonate. To obtain the pure metal, the ore must go through the following chemical processes:. Q: What are the two main components in a battery? Choices: - filter and a cathode - vortex and a cathode - anode and a vortex - anode and a cathode A:
anode and a cathode
(Question)
Answer the following question given this paragraph: Many animal behaviors occur in a regular cycle. Two types of cyclic behaviors are circadian rhythms and migration. Q: Circadian rhythms and migration are examples of what kind of behaviors in animals? Choices: - continual - fluid - finite - cyclic A:
(Answer)
cyclic
Ques: Answer the following question given this paragraph: Skeletal muscle is made up of voluntary muscles, usually attached to the skeleton. Skeletal muscles move the body. They can also contract involuntarily by reflexes. For example, you can choose to move your arm, but your arm would move automatically if you were to burn your finger on a stove top. This voluntary contraction begins with a thought process. A signal from your brain tells your muscles to contract or relax. Quickly contract and relax the muscles in your fingers a few times. Think about how quickly these signals must travel throughout your body to make this happen. Q: What normal bodily occurrence can cause skeletal muscles to involuntarily contract? Choices: - thinking - movement - respiration - reflexes A:
Ans: reflexes
(Q).
Answer the following question given this paragraph: A great many experiments have been performed to test the predictions of special relativity. No contradictions have been found. Scientists have therefore accepted special relativity as an accurate description of nature. When the relative velocities of objects are considerably less than the speed of light, the formulas for relativistic time, length, and mass all reduce to the classical formulas. It is required that the two theories correspond where they overlap at speeds much less than . Special relativity does not contradict classical mechanics. Rather, it is a more general theory needed for object speeds approaching the speed of light. Q: What theory goes beyond classical mechanics to describe the behavior of near-light-speed objects? Choices: - normal relativity - simple relativity - spacial relativity - special relativity A:
(A).
special relativity
Ques:Answer the following question given this paragraph: Figure 20.8 shows the schematic for a simple circuit. A simple circuit has a single voltage source and a single resistor. The wires connecting the voltage source to the resistor can be assumed to have negligible resistance, or their resistance can be included in R . Q: What has a single voltage source and a single resistor Choices: - complex circuit - pattern circuit - stuff circuit - simple circuit A:

Ans:simple circuit
Ques: Answer the following question given this paragraph: Amphibians reproduce sexually. Fertilization may take place inside or outside the body. Amphibians are oviparous. Embryos develop in eggs outside the mother's body. Q: How do amphibians reproduce? Choices: - asexually - biologically - they don't - sexually A:
Ans:
sexually