input: OPTIONS:
- beaks
- bones
- abdomens
- lungs Now, answer this question: Q: Birds have air sacs that store inhaled air and push it into their what? A:
A:
output: lungs

input: OPTIONS:
- movement fossils
- crater fossils
- morphology fossils
- trace fossils Now, answer this question: Q: Footprints, burrows, and waste are considered what type of fossils? A:
A:
output: trace fossils

input: OPTIONS:
- radiation change
- Decomposition
- contamination change
- chemical change Now, answer this question: Q: What is rusting an example of? A:
A:
output:
chemical change