Problem: OPTIONS:
- motions of the sun
- gravitational waves
- moon phases
- motions of earth
Q: Q: The units of time, day and year are based on what? A:
Answer: motions of earth

Problem:OPTIONS:
- exhibit
- illuminating
- peculiar
- courtship

Q: What type of behaviors are triggered by pheromones in moths? A:
****
A: courtship

Q: The thin scale-like or flat shape of what cells fits their primary function, to provide a smooth and protective surface? A:
OPTIONS:
- technique epithelium
- kind epithelium
- basic epithelium
- simple epithelium
simple epithelium

Q: What structures include the vagina, uterus, ovaries, and fallopian tubes? A:
OPTIONS:
- respiration
- digestion
- skeletal
- reproductive

Answer: reproductive

Question: Q: The following definition relates to which term: the application of knowledge to real-world problems? A:
OPTIONS:
- capitalism
- invention
- industry
- technology
Answer: technology

input: OPTIONS:
- plasma
- liquids
- hydrocarbons
- gas Now, answer this question: Q: When electricity is passed through solid sodium it changes into what and gives off light? A:
A:
output:
gas