instruction:
Given a scientific passage and an answer, generate a question for the given answer.
question:
Passage: Bacteria are responsible for many types of diseases in humans. Answer: diseases
answer:
Bacteria are responsible for many types of what in humans?

question:
Passage: Electrons are always added to the lowest energy level first until it has the maximum number of electrons possible, and then electrons are added to the next higher energy level until that level is full, and so on. The maximum number of electrons at a given energy level depends on its number of orbitals. There are at most two electrons per orbital. Answer: the lowest
answer:
Electrons are always added to which energy level first?

question:
Passage: A: Homogenized milk is a colloid. The particles in the milk are large enough to seethat's why milk is white instead of clear like water, which is the main component of milk. However, the particles are not large enough to settle out of the mixture. Answer: water
answer:
What is the main component of milk?