input with options: Q: Which common oxidizing agent can be used to oxidize alcohols? A:
OPTIONS:
- hydrogen dichromate
- potassium chloride
- hydrogen chloride
- potassium dichromate
output: potassium dichromate

Q: Q: What's the term for the period during which women's ovaries stop producing eggs? A:

OPTIONS:
- puberty
- maturity
- adolescence
- menopause

A: menopause

input: OPTIONS:
- wetlands
- tropics
- meadows
- peatlands Now, answer this question: Q: What are boggy regions with thick layers of peat called? A:
A:
output: peatlands

Q: What do we call the lowest layer of the atmosphere? A:

OPTIONS:
- stratosphere
- asthenosphere
- mesosphere
- troposphere

Answer: troposphere

Problem: OPTIONS:
- rust
- bacteria
- chlorine taste
- tooth decay
Q: Q: Fluoride ion is widely used in water supplies to help prevent what? A:
Answer: tooth decay

Q: What are the largest phylum of the animal kingdom? A:

OPTIONS:
- Crustacea
- Chelicerata
- Pycnogonida
- arthropods

Answer:
arthropods