Q: What makes toenails and fingernails hard? A:
OPTIONS:
- guanine
- cellulose
- taurine
- keratin

Answer: keratin

Question: Q: What results from the evaporation of sea water? A:
OPTIONS:
- carbon-di-oxide
- reef
- oxygen
- salt
Answer: salt

input with options: Q: Bog destruction in scotland is an example of the widespread loss of what kind of habitat? A:
OPTIONS:
- tundra
- ocean
- desert
- wetland
output: wetland

Q: Q: What is the term for geological activity that occurs within a plate? A:

OPTIONS:
- perennials activity
- disruption activity
- deformation activity
- intraplate activity

A: intraplate activity

input: OPTIONS:
- nanoseconds
- millimeters
- vatts
- nanometers (nm) Now, answer this question: Q: What is the wavelength of light expressed in? A:
A:
output: nanometers (nm)

Question: Q: Oxygenated blood is transported by what system? A:
OPTIONS:
- skeletal
- nervous
- pulmonary
- circulatory
Answer:
circulatory