Question: Q: What is the least dangerous radioactive decay? Choices: - beta decay - gamma decay - zeta decay - alpha decay A:
Answer: alpha decay

Question: Q: What type of gas is delivered to homes to use for cooking and heating? Choices: - fluid gas - compounded gas - nuetralized gas - natural gas A:
Answer: natural gas

Question: Q: Silk and cotton are examples of what type of fibers? Choices: - mechanical - artificial - coral - natural A:
Answer:
natural