*Question*
Q: The subducting oceanic plate does what as it reenters the mantle? Choices: - evaporates - disappers - freezes - melts A:
**Answer**
melts

*Question*
Q: Near-earth asteroids cross paths with earth, meaning they could collide; what are the paths called? Choices: - trajectory - curves - galaxies - orbits A:
**Answer**
orbits

*Question*
Q: How many electrons can be accommodated in the first electron shell's orbital? Choices: - none - 1 - 3 - 2 A:
**Answer**
2

*Question*
Q: Photoautotrophs including (a) plants, (b) algae, and (c) cyanobacteria synthesize their organic compounds via photosynthesis using sunlight as this? Choices: - light source4 - heating source - fuel source - energy source A:
**Answer**
energy source