input: OPTIONS:
- light characterization
- light energy
- light expansion
- light reflection Now, answer this question: Q: What makes metals shiny? A:
A:
output: light reflection

Q: What are the lipids containing phosphorus? A:

OPTIONS:
- eukaryotes
- hemoglobin
- alkaloids
- phospholipids

Answer: phospholipids

Problem: OPTIONS:
- 10 percent
- 99 percent
- 40 percent
- 85 percent
Q: Q: The ordovician-silurian extinction event is the first recorded mass extinction and the second largest. during this period, about what percent of marine species went extinct? A:
Answer: 85 percent

Problem:OPTIONS:
- nitrogen
- hydrogen
- oxygen
- water

Q: When methane burns, what is produced along with carbon dioxide? A:
****
A: water

Q: What is the single bone that forms the posterior skull and posterior base of the cranial cavity? A:
OPTIONS:
- limbic bone
- maxilla
- radiating bone
- occipital bone
occipital bone

Q: What two ways may catalyst be classified? A:
OPTIONS:
- oxygenated or heterogenous
- reactive or nonreactive
- fast or slow
- homogeneous or heterogeneous

Answer:
homogeneous or heterogeneous