Given a scientific passage and an answer, generate a question for the given answer.

Q: Passage: Starch is a large, complex carbohydrate made of thousands of glucose units (monomers) joined together. Starches are found in foods such as vegetables and grains. Starches are broken down by the body into sugars that provide energy. Breads and pasta are good sources of complex carbohydrates. Answer: glucose units (monomers)

A: Starch is a large, complex carbohydrate made of thousands of _____ joined together?
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Q: Passage: An atom's protons and electrons carry electrical charges. Protons, with their positive charge, are designated p+. Electrons, which have a negative charge, are designated e. An atom's neutrons have no charge: they are electrically neutral. Just as a magnet sticks to a steel refrigerator because their opposite charges attract, the positively charged protons attract the negatively charged electrons. This mutual attraction gives the atom some structural stability. The attraction by the positively charged nucleus helps keep electrons from straying far. The number of protons and electrons within a neutral atom are equal, thus, the atom's overall charge is balanced. Answer: neutrons

A: What part of an atom is electrically neutral?
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Q: Passage: Environmental science deals with the effects people have on the environment. Answer: environmental science

A:
What branch of science deals with the effects people have on the environment?
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