Q: A turbine that spins a generator will produce? Read this paragraph and choose the correct option from the provided answers: You can follow the operation of an electricity-generating fission reactor in the image above. The reactor core is submerged in a pool of water. The heat from the fission reaction heats the water, which is pumped into a heat exchange container. There the heated water boils the water in the heat exchanger. The produced steam is forced through a turbine that spins a generator and produces electricity. After the water passes through the turbine, it is condensed back to liquid water and pumped back to the heat exchanger. Choices: - solar energy - light - magnetic fields - electricity A:
electricity

Q: What cycle vital to plants includes a process called denitrification? Read this paragraph and choose the correct option from the provided answers: 3.4 NITROGEN: RUNNING IN CYCLES Introduction: In the previous assignment, you studied the carbon cycle. In a previous unit, you described the water cycle. Carbon and water are matter. As you learned in the first unit, matter cycles. Nitrogen is another form of matter that cycles. Like water and carbon, nitrogen is essential to life. Also, like water and carbon, its cycles affect you. Therefore it is important that you learn about the nitrogen cycle, how it affects you, and how you affect it. Assignment: There are three parts to this assignment. You must complete all three parts to receive credit for the assignment. Be sure to turn in all three parts at the same time. I will not correct partial assignments. THANKS! PART ONE: 1. Describe the nitrogen cycle. Describe how nitrogen goes from the atmosphere to a form usable to plants, how it is used and excreted by animals, and how it returns to the atmosphere. In your description be sure to explain the words: * decay * denitrification. Choices: - carbon cycle - sedimentation cycle - photosynthesis - nitrogen cycle A:
nitrogen cycle

Q: Q: The earliest vertebrates were jawless what? Read this paragraph and choose the correct option from the provided answers: The earliest vertebrates were jawless fish. They evolved about 550 million years ago. They were probably similar to modern hagfish (see Table above ). The tree diagram in Figure below summarizes how vertebrates evolved from that time forward. Choices: - mammals - dinosaurs - reptiles - fish A:
A: fish

Question: Q: What is the lowest layer of the atmosphere called? Read this paragraph and choose the correct option from the provided answers: Air movement takes place in the troposphere. This is the lowest layer of the atmosphere. Air moves because of differences in heating. These differences create convection currents and winds ( Figure below ). Choices: - mesosphere - lithosphere - asthenosphere - troposphere A:
Answer: troposphere

*Question*
Q: What process takes place when echinoderms release their gametes into the water? Read this paragraph and choose the correct option from the provided answers: The echinoderm nervous system has a nerve ring at the center and five radial nerves extending outward along the arms. There is no centralized nervous control. Echinoderms have separate sexes and release their gametes into the water where fertilization takes place. Echinoderms may also reproduce asexually through regeneration from body parts. Choices: - migration - stimulation - isolation - fertilization A:
**Answer**
fertilization

(Question)
Q: What causes waves to bring sand up onto the beach during summers? Read this paragraph and choose the correct option from the provided answers: Waves also move sand from the beaches on shore to bars of sand offshore as the seasons change. In the summer, waves have lower energy so they bring sand up onto the beach. In the winter, higher energy waves bring the sand back offshore. Choices: - no energy - high energy - low sand density - low energy A:
(Answer)
low energy