Q: What is the term for a pure substance that possesses unique properties and cannot be broken down into other substances? A:

OPTIONS:
- alloy
- plastic
- light
- element

Answer: element

Problem: OPTIONS:
- pressure
- gravity
- Tension Force
- centripetal force
Q: Q: What is the force that causes centripetal acceleration? A:
Answer: centripetal force

Problem:OPTIONS:
- second layer
- internal
- shell
- valence

Q: What type of electrons do all group 14 elements have four of? A:
****
A: valence

Q: Living things need to take in nutrients so that they can grow and create what? A:
OPTIONS:
- protein
- plasma
- hydrogen
- energy
energy

Q: Through what does the nerve impulses travel to the brain? A:
OPTIONS:
- abducent nerve
- trochlear nerve
- oculomotor nerve
- optic nerve

Answer: optic nerve

input with options: Q: What does phagocytosis defend the body from? A:
OPTIONS:
- allergies
- obesity
- parasites
- pathogens
output:
pathogens