Problem: OPTIONS:
- Collagen
- air
- Energy.
- power
- oxygen
- waves
- friction
- energy
Q: Fact 1: Blowing air into a whistle causes air to vibrate inside the whistle. Fact 2: All sounds begin with vibrations. Given the two facts above, what do whistles use to make sound?
Answer: oxygen

Problem:OPTIONS:
- toxins
- HIV
- Alcohol
- food
- A drug.
- air
- water
- venom

Fact 1: Poison causes harm to living things. Fact 2: Rattlesnakes can inject poisonous venom. Given the two facts above, what causes harm to living things?
****
A: venom

Fact 1: Earthworms are important deposit feeders that help form and enrich soil. Fact 2: Life Cycle Earthworms are hermaphrodites. Given the two facts above, what is an important deposit feeder that helps form and enrich soil?
OPTIONS:
- A reptile
- swamp vegetation
- bacteria
- A male
- shrub beds
- A hermaphrodite
- An amphibian
- peachleaf willow
A hermaphrodite

Fact 1: Mutations are essential for evolution to occur. Fact 2: Evolution causes species to change over time. Given the two facts above, the changes in species that have been seen over time required?
OPTIONS:
- Energy
- exercise
- strong microscopes
- mutations
- gene splicing
- warm weather
- vegetation
- Energy.

Answer: mutations

Question: Fact 1: Plants release oxygen during the day but not during the night. Fact 2: Plants include blue pine, hemlock, spruce and oak. Given the two facts above, what releases oxygen during the day but not during the night?
OPTIONS:
- elephants
- dogs
- hydrocarbons
- blue pine
- Conifers
- vegetation
- humans
- Fuel cells
Answer: blue pine

input: OPTIONS:
- heat energy
- focusing a lens
- chemical changes
- flow of electrons
- electrically
- Electrical energy
- sunlight and rain
- energy of moving objects Now, answer this question: Fact 1: Sunlight and rain can cause a rainbow. Fact 2: Bent light separates into the colors of a rainbow. Given the two facts above, what can cause bent light to separate into colors?
A:
output:
sunlight and rain