Question: Q: What element is the sun mostly made up of? Choices: - manganese - mercury - helium - hydrogen A:
Answer: hydrogen

Question: Q: How many valence electrons do neutral phosphorus atoms have? Choices: - nine - three - four - five A:
Answer: five

Question: Q: A pedigree is a chart which shows the inheritance of a trait over several what? Choices: - centuries - events - organisms - generations A:
Answer:
generations