Question: Answer the following question given this paragraph: Figure 25.5 Light is diffused when it reflects from a rough surface. Here many parallel rays are incident, but they are reflected at many different angles since the surface is rough. Q: What happens to light when it reflects from a rough surface? Choices: - reflects - becomes isolated - becomes concentrated - gets diffused A:
Answer: gets diffused

Question: Answer the following question given this paragraph: The exact cause of supervolcano eruptions is still debated. However, scientists think that a very large magma chamber erupts entirely in one catastrophic explosion. This creates a caldera into which the surface collapses ( Figure below ). The composition of the eruption is felsic or highly felsic. Q: What kind of eruption do scientists think is caused by a very large magma chamber erupting entirely in one catastrophic explosion? Choices: - brucei eruption - mangxamba eruption - supermagma eruption - supervolcano eruption A:
Answer: supervolcano eruption

Question: Answer the following question given this paragraph: Rutherford's discoveries meant that Thomson's plum pudding model was incorrect. Positive charge is not spread evenly throughout an atom. Instead, it is all concentrated in the tiny nucleus. The rest of the atom is empty space except for the electrons scattered through it. In Rutherford's model of the atom, which is shown in the Figure below , the electrons move around the massive nucleus like planets orbiting the sun. That's why his model is called the planetary model. Rutherford didn't know exactly where or how electrons orbit the nucleus. That research would be undertaken by later scientists, beginning with Niels Bohr in 1913. New and improved atomic models would also be developed. Nonetheless, Rutherford's model is still often used to represent the atom. You can see an animated version of the model at this URL: http://www. clickandlearn. org/gr9_sci/atoms/modelsoftheatom. html . Q: Positive charge is mostly found in what part of an atom? Choices: - electron shell - neutrons - ions - nucleus A:
Answer:
nucleus