Q: What can often be used to measure distance? Choices: - histograms - models - graphs - maps A:
maps

Q: Any sample of matter that has the same physical and chemical properties throughout the sample is called what? Choices: - element - molecule - type - substance A:
substance

Q: Q: What are the three types of isomers? Choices: - structural, Polypropylene , enatiomers - structural , chromosome - trans , enatiomers - structural, cis-trans, Polystyrene - structural, cis-trans, enatiomers A:
A: structural, cis-trans, enatiomers

Question: Q: Because trees add water vapor to air, cutting down forests leads to longer periods of what? Choices: - ice - harvest - flooding - drought A:
Answer: drought

*Question*
Q: Dragonflies were one of the first insects to do what? Choices: - swim - fight - sexually reproduce - fly A:
**Answer**
fly

*Question*
Q: Two important concepts, niche and habitat, are associated with what? Choices: - natural selection - plant - water - ecosystem A:
**Answer**
ecosystem