Question: Q: What french chemist discovered the radioactive elements polonium and radium? Choices: - margaret curie - louis pasteur - pascal curie - marie curie A:
Answer: marie curie

Question: Q: What is the active ingredient in household bleach? Choices: - magnesium - oxygen - iodine - chlorine A:
Answer: chlorine

Question: Q: Which other planet in the solar system is the easiest to observe from earth? Choices: - Pluto - Mercury - Jupiter - mars A:
Answer:
mars