Answer the following question given this paragraph: Steam rises from the cooling towers of this nuclear power plant. The steam is only harmless water vapor. Unlike a power plant that burns fossil fuel, a nuclear power plant doesn't release pollution into the air. That's because a nuclear power plant produces power by nuclear fission, a type of nuclear reaction. Q: What is harmless water vapor, for a powerplant? Choices: - wind - plasma - fog - steam A:
steam
(Question)
Answer the following question given this paragraph: Q: What is a substance that increases the hydrogen ion concentration of a solution? Choices: - carbon - sulfur - base - acid A:
(Answer)
acid
Ques: Answer the following question given this paragraph: Specifically for the strong nuclear force, Yukawa proposed that a previously unknown particle, now called a pion, is exchanged between nucleons, transmitting the force between them. Figure 33.3 illustrates how a pion would carry a force between a proton and a neutron. The pion has mass and can only be created by violating the conservation of mass-energy. This is allowed by the Heisenberg uncertainty principle if it occurs for a sufficiently short period of time. As discussed in Probability: The Heisenberg Uncertainty Principle the Heisenberg uncertainty principle relates the uncertainties E in energy and t in time by. Q: The pion can only be created by violating the conservation of what? Choices: - quantum physics - time-space - momentum - mass-energy A:
Ans: mass-energy
(Q).
Answer the following question given this paragraph: The endocrine system consists of glands that secrete hormones into the bloodstream. Q: What system consists of glands that secrete hormones into the bloodstream? Choices: - Respiratory system - nervous system - Muscular system - the endocrine system A:
(A).
the endocrine system
Ques:Answer the following question given this paragraph: one of two female reproductive organs that produces eggs and secretes estrogen. Q: Organs that produce eggs and secrete estrogen are part of what system? Choices: - circulatory system - digestive system - male reproductive system - female reproductive system A:

Ans:female reproductive system
Question: Answer the following question given this paragraph: As mentioned earlier, echinoderms show radial symmetry. Other key echinoderm features include an internal skeleton and spines, as well as a few organs and organ systems. Although echinoderms look like they have a hard exterior, they do not have an external skeleton. Instead, a thin outer skin covers an internal skeleton made of tiny plates and spines. This provides rigid support. Some groups of echinoderms, such as sea urchins ( Figure below ), have spines that protect the organism. Sea cucumbers use these spines to help them move. Q: What type of symmetry do echinoderms show? Choices: - mirrored - lateral - parallel - radial A:
Answer:
radial