Q: What occurs between long warm climate periods? Choices: - hurricanes - mass extinction - drought - ice ages A:
ice ages

Q: Where does the small intestine begin? Choices: - mouth - colon - spleen - stomach A:
stomach

Q: Q: In what season are temperature inversions more common? Choices: - spring - autumn - summer - winter A:
A: winter

Question: Q: What happens when a sodium atom loses an electron? Choices: - becomes calcium - gains a proton - combines with hydrogen - becomes sodium ion A:
Answer: becomes sodium ion

*Question*
Q: What do they call 2,2,4-trimethylpentane in the gasoline industry? Choices: - spirogyra - methane - xerophyte - isooctane A:
**Answer**
isooctane

Q: Q: What is the term for when clumped solids sink to the bottom of the water? Choices: - Clumping - sediment - Foundation - sedimentation A:
A: sedimentation