input with options: Q: What do you call mixtures of ash and water that travel down river valleys? A:
OPTIONS:
- debris
- pollutants
- mud slides
- lahars
output: lahars

Q: Q: What is the name for the cooler, darker areas on the sun's surface? A:

OPTIONS:
- corona
- aurora borealis
- anomalies
- sunspots

A: sunspots

input: OPTIONS:
- unnatural science
- natural science
- negative science
- physical science Now, answer this question: Q: What branch of science is the study of matter and energy? A:
A:
output: physical science

Q: A plant is composed of two main types of tissue: meristematic tissue and what other kind of tissue? A:

OPTIONS:
- synovial tissue
- muscle tissue
- nonvascular tissue
- permanent tissue

Answer: permanent tissue

Problem: OPTIONS:
- molecules
- ion
- protons
- nucleus
Q: Q: An example of beta decay is the emission of an electron by a carbon-14 what? A:
Answer: nucleus

Q: What do you call an object that attracts certain materials such as iron? A:

OPTIONS:
- antenna
- neutron
- electron
- magnet

Answer:
magnet