Q: Wine, air, and gunpowder are all examples of what kind of common mixtures? Choices: - combined - contiguous - heterogeneous - homogeneous A:
homogeneous

Q: In the radiative zone, light particles called what can only travel a few millimeters before they hit another particle? Choices: - electrons - positrons - neutrons - photons A:
photons

Q: Q: What element is all life built around? Choices: - hydrogen - neon - oxygen - carbon A:
A: carbon

Question: Q: Most waves strike the shore at an angle. this causes what? Choices: - erosion - tide - fontaine drift - longshore drift A:
Answer: longshore drift

*Question*
Q: What is the large muscle that extends across the bottom of the chest below the lungs called? Choices: - uterus - pectoral - abdomen - diaphragm A:
**Answer**
diaphragm

*Question*
Q: What occurs when a cold air mass runs into a warm air mass? Choices: - an occluded front - a stationary front - a snow day - a cold front A:
**Answer**
a cold front