Problem: OPTIONS:
- stability
- protection from bird strikes
- speed
- motion
- engine cooling
- energy
- noise cancellation
- power
Q: Fact 1: Producing thrust causes something to move. Fact 2: Airplanes create thrust using propellers, jet engines , or rockets . Given the two facts above, propellers are on some airplanes primarily to give?
Answer: motion
Problem: OPTIONS:
- shrub beds
- litter
- Sugar
- Protein
- Bacteria
- graptolites
- ferns
- Food
Q: Fact 1: Fungi spores can develop into new haploid individuals without being fertilized. Fact 2: First, bacteria are haploid. Given the two facts above, what can fungi spores develop into without being fertilized?
Answer: Bacteria
Problem: OPTIONS:
- stem
- oxygen
- reading
- overexposure
- books
- sodium
- Water
- Sun
Q: Fact 1: Astem is used to store water by some plants. Fact 2: Every plant and animal needs water to survive. Given the two facts above, what do some plants need to survive?
Answer:
stem