*Question*
Q: What is used during every step of oil production, from exploration to distribution? Choices: - coal - robots - water - energy A:
**Answer**
energy

*Question*
Q: What is a key factor in the growth of populations? Choices: - legislation - gentrification - assimilation - immigration A:
**Answer**
immigration

*Question*
Q: Influenza is a type of what, where glycoproteins attach to a host epithelial cell? Choices: - recent disease - nucleus disease - atoms disease - viral disease A:
**Answer**
viral disease

*Question*
Q: What helps sound travel in waves? Choices: - molecules - speaker placements - temperatures - gases A:
**Answer**
gases