Question: Q: What occurs when an unstable nucleus emits a beta particle and energy? A:
OPTIONS:
- nucleus decay
- alpha decay
- methane decay
- beta decay
Answer: beta decay

input with options: Q: What term describes a specific statement that is thought to be never violated by the entire natural universe? A:
OPTIONS:
- evidence
- hypothesis
- theory
- scientific law
output: scientific law

Q: Q: Nitrogen and sulfur oxides form what type of rain? A:

OPTIONS:
- common rain
- toxic rain
- heavy rain
- acid rain

A: acid rain

input: OPTIONS:
- nitrogen
- feces
- blood
- urine Now, answer this question: Q: In contrast to mammals and birds, freshwater fishes produce large volumes of very dilute what? A:
A:
output: urine

Q: Also called lodestone, the mineral magnetite is the most powerful what? A:

OPTIONS:
- material on Earth
- synthetic magnet
- healing magnet
- natural permanent magnet

Answer: natural permanent magnet

Q: Q: The elements in group 2 are called what? A:

OPTIONS:
- halogens
- metal alloys
- noble gases
- alkaline earth metals

A:
alkaline earth metals