instruction:
Given a scientific passage and an answer, generate a question for the given answer.
question:
Passage: Matter can be classified as transparent, translucent, or opaque depending on how it interacts with light. Answer: opaque
answer:
Depending on how matter interacts with light, it can be classified as transparent, translucent, or what?

question:
Passage: The Cytoplasm The cytoplasm comprises the contents of a cell between the plasma membrane and the nuclear envelope (a structure to be discussed shortly). It is made up of organelles suspended in the gel-like cytosol, the cytoskeleton, and various chemicals (Figure 3.7). Even though the cytoplasm consists of 70 to 80 percent water, it has a semi-solid consistency, which comes from the proteins within it. However, proteins are not the only organic molecules found in the cytoplasm. Glucose and other simple sugars, polysaccharides, amino acids, nucleic acids, fatty acids, and derivatives of glycerol are found there too. Ions of sodium, potassium, calcium, and many other elements are also dissolved in the cytoplasm. Many metabolic reactions, including protein synthesis, take place in the cytoplasm. Answer: cytoplasm
answer:
What comprises the contents of a cell between the plasma membrane and the nuclear envelope?

question:
Passage: The electrical conductivity of a substance is a property that depends only on the type of substance. Silver, gold, and copper are excellent conductors of electricity, while glass and plastic are poor conductors. A larger or smaller piece of glass will not change this property. An intensive property is a property of matter that depends only on the type of matter in a sample and not on the amount. Other intensive properties include color, temperature, density, and solubility. Answer: electricity
answer:
Silver, gold, and copper all conduct what very well?