Q: Fact 1: Aairplane is used for moving people across bodies of water. Fact 2: Airplanes are responsible for air, noise, and water pollution. Given the two facts above, what pollutes the environment? | OPTIONS:
- bacteria
- airplanes
- deforestation
- moon
- sun
- cells
- Smoking
- flooding
A: airplanes

Q: Fact 1: Flagella help prokaryotes move. Fact 2: Flagella are long filaments made up of the protein flagellin. Given the two facts above, what moves with long filaments? | OPTIONS:
- prokaryotes
- sponges
- an object
- lizards
- protein
- sensory neurons
- insects
- Most plants
A: prokaryotes

Q: Fact 1: Insects may live in large colonies and have complex social behaviors. Fact 2: Bees and other insects are agents. Given the two facts above, what may live in large colonies and have complex social behaviors? | OPTIONS:
- ducks
- bats
- Birds
- koalas
- elms
- voles
- toads
- bees
A: bees

Q: Fact 1: Earthworm burrows help aerate soil, which is also good for plants. Fact 2: Earthworms help soils breathe. Given the two facts above, what helps soil breathe? | OPTIONS:
- the circulatory system
- gasoline
- loose dirt
- temperature
- evaporation
- Exfoliation
- aeration
- bacteria
A: aeration