input: OPTIONS:
- unbalanced
- ready
- empty
- full Now, answer this question: Q: When a lower energy level is ______ electrons are added to the next higher energy level. A:
A:
output: full

Q: Earth rotates on its axis once each day and revolves around the sun how often? A:

OPTIONS:
- once each month
- ever 3 years
- every other year
- once each year

Answer: once each year

Problem: OPTIONS:
- ball and socket
- lever and pulley
- ball and axle
- wheel and axle
Q: Q: A doorknob and a ferris wheel are examples of what type of simple machine? A:
Answer: wheel and axle

Problem:OPTIONS:
- single bond
- double bond
- quadruple bond
- triple bond

Q: The bond between the two nitrogen atoms is a what? A:
****
A: triple bond

Q: What are mammals that lay eggs called? A:
OPTIONS:
- kangaroos
- amphibians
- herbivores
- monotremes
monotremes

Q: What type of physics explains the behavior of visible light and electromagnetic waves? A:
OPTIONS:
- Quantum mechanics
- Thermodynamics
- statistics
- optics

Answer:
optics