Ques:Answer the following question given this paragraph: When heat flows into an object, its thermal energy increases and so does its temperature. Q: When heat flows into an object, its thermal energy increases and so does its what? Choices: - matter - speed - color - temperature A:

Ans:temperature
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Ques:Answer the following question given this paragraph: When current keeps reversing direction, it is called alternating current (AC) . You can see how it works in the two diagrams below. The current that comes from a power plant and supplies electricity to homes and businesses is alternating current. The current changes direction 60 times per second. It happens so quickly that the light bulb doesn't have a chance to stop glowing when the reversals occur. Q: What is it called when currents keep reversing direction? Choices: - circle current - emitting current - stream current - alternating current A:

Ans:alternating current
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Ques:Answer the following question given this paragraph: Respiration is the process in which gases are exchanged between the body and the outside air. Q: What is the main organ required for respiration in mammals? Choices: - the diaphragm - the heart - the brain - the lungs A:

Ans:the lungs
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Ques:Answer the following question given this paragraph: Vertebrates reproduce sexually, and almost all of them have separate male and female sexes. Generally, aquatic species have external fertilization, whereas terrestrial species have internal fertilization. Can you think of a reason why aquatic and terrestrial vertebrates differ in this way?. Q: In which way do vertebrates reproduce? Choices: - bisexually - unisexually - asexually - sexually A:

Ans:
sexually
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