Question: Q: Fishes were the earliest example of what subphylum, and jawless fishes were the earliest of these? A:
OPTIONS:
- grasses
- ferns
- mammals
- vertebrates
Answer: vertebrates

input with options: Q: Which instruments are used to measure the angle of the slope of a volcano? A:
OPTIONS:
- altimeter
- compass
- calipers
- tiltmeters
output: tiltmeters

Q: Q: Living things that use energy to make food, both for themselves and other living things, are what part of an ecosystem? A:

OPTIONS:
- consumers
- decomposers
- growers
- producers

A: producers

input: OPTIONS:
- extraction sulfide
- methane sulfide
- iron
- zinc sulfide Now, answer this question: Q: When zinc metal is mixed with sulfur and heated, what is produced? A:
A:
output: zinc sulfide

Q: What is the number of protons in the nucleus? A:

OPTIONS:
- element
- metallic number
- atomic mass
- atomic number

Answer: atomic number

Q: Q: Sodium and chlorine combine to make what? A:

OPTIONS:
- gold
- seawater
- iron
- salt

A:
salt