Q: Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their ratios of what? A:
OPTIONS:
- ph to charge
- volume to charge
- mass to volume
- mass-to-charge
mass-to-charge

Q: What does temperature measure? A:
OPTIONS:
- lowest kinetic energy of molecules
- average potential energy of molecules
- highest potential energy of molecules
- average kinetic energy of molecules

Answer: average kinetic energy of molecules

Question: Q: Scientists use the principles of what to make predictions, which they then test? A:
OPTIONS:
- their teachers
- their guesses
- their faith
- their hypothesis
Answer: their hypothesis

input with options: Q: Fractures, rickets, and osteoarthritis all affect what part(s) of the body? A:
OPTIONS:
- fossils
- Heart
- animals
- bones
output: bones

Q: Q: In what unit is speed usually measured? A:

OPTIONS:
- radians
- calories
- Celcius
- miles per hour

A: miles per hour

Q: What process provides over 99% of the energy supply for life on earth? A:
OPTIONS:
- gases
- nutrients
- Carbon
- photosynthesis
photosynthesis