Q: What process refers to a separation of charge within an atom or molecule? Read this paragraph and choose the correct option from the provided answers: material, and is intimately related to the polarizability of the material. Things Great and Small The Submicroscopic Origin of Polarization Polarization is a separation of charge within an atom or molecule. As has been noted, the planetary model of the atom pictures it as having a positive nucleus orbited by negative electrons, analogous to the planets orbiting the Sun. Although this model is not completely accurate, it is very helpful in explaining a vast range of phenomena and will be refined elsewhere, such as in Atomic Physics. The submicroscopic origin of polarization can be modeled as shown in Figure 19.18. Choices: - diffusion - convection - rotation - polarization A:
polarization
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Q: What type of roots enable a plant to grow on another plant? Read this paragraph and choose the correct option from the provided answers: Epiphytic roots enable a plant to grow on another plant. For example, the epiphytic roots of orchids develop a spongy tissue to absorb moisture. The banyan tree (Ficus sp. ) begins as an epiphyte, germinating in the branches of a host tree; aerial roots develop from the branches and eventually reach the ground, providing additional support (Figure 30.20). In screwpine (Pandanus sp. ), a palm-like tree that grows in sandy tropical soils, aboveground prop roots develop from the nodes to provide additional support. Choices: - Sickness - endemic - mites - epiphytic A:
epiphytic
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Q: Bacteria can be used to make cheese from milk. the bacteria turn the milk sugars into what? Read this paragraph and choose the correct option from the provided answers: Bacteria can be used to make cheese from milk. The bacteria turn the milk sugars into lactic acid. The acid is what causes the milk to curdle to form cheese. Bacteria are also involved in producing other foods. Yogurt is made by using bacteria to ferment milk ( Figure below ). Fermenting cabbage with bacteria produces sauerkraut. Choices: - acetic acid - ionic acid - hydrochloric acid - lactic acid A:
lactic acid
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Q: What warms the base of the mantle creating convection currents there? Read this paragraph and choose the correct option from the provided answers: The hot core warms the base of the mantle, which creates convection currents in the mantle. Choices: - mantle soil - the hot regenerate - molten lava - the hot core A:
the hot core
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