input with options: Q: Superconductors are materials with a resistivity of? A:
OPTIONS:
- above zero
- greater density
- high magnitude
- zero
output: zero

Q: Q: What describes how close an estimate is to a known standard? A:

OPTIONS:
- diversity
- frequency
- precision
- accuracy

A: accuracy

input: OPTIONS:
- liquid
- nuclear
- mineral
- chemical Now, answer this question: Q: Which type of weathering causes changes int he rocks materials, chemical or mechanical? A:
A:
output: chemical

Q: Different feeding "positions" in a food chain or web are associated with what kinds of levels? A:

OPTIONS:
- benthic
- autotrophic
- heptic
- trophic

Answer: trophic

Problem: OPTIONS:
- carbohydrates
- hormones
- proteins
- enzymes
Q: Q: What are biological catalysts that speeds up biochemical reactions? A:
Answer: enzymes

Q: Friction causes the molecules on rubbing surfaces to move faster, which produces what? A:

OPTIONS:
- life
- precipitation
- cold
- heat

Answer:
heat