Q: What is the largest mineral group, comprising over 90% of earth's crust? A:
OPTIONS:
- oxides
- carbonates
- soils
- silicates

Answer: silicates

Question: Q: What substances, which serve as catalysts, are involved in most of the chemical reactions that take place in organisms? A:
OPTIONS:
- proteins
- vitamins
- carbohydrates
- enzymes
Answer: enzymes

input with options: Q: The gender of a baby is determined by what special pair of chromosomes? A:
OPTIONS:
- diploid chromosomes
- sister chromatids
- reflection chromosomes
- sex chromosomes
output: sex chromosomes

Q: Q: What are small gnawing mammals such as rats and mice called? A:

OPTIONS:
- miniatures
- marsupials
- furries
- rodents

A: rodents

input: OPTIONS:
- momentum
- magnetic force
- man hours
- mechanical advantage Now, answer this question: Q: What is indicated by the ratio of the output force to the input force in a machine? A:
A:
output: mechanical advantage

Question: Q: An enzyme is an organic catalyst produced by what? A:
OPTIONS:
- DNA
- the liver
- amino acid
- living cell
Answer:
living cell