input with options: Fact 1: Blood pH may become unbalanced if the rate of breathing is too fast or too slow. Fact 2: Breathing is regulated to keep as normal as possible arterial blood pH and PO2. Given the two facts above, what does breathing help balance acidity levels?
OPTIONS:
- blood
- muscles
- water
- air
- CO 2
- oxygen
- Gases
- protein
output: blood

input with options: Fact 1: Some light bulbs convert electricity into light and heat energy. Fact 2: Electrical energy is also energy. Given the two facts above, what do some light bulbs convert other energy into?
OPTIONS:
- water vapor
- basic building blocks of life
- gasoline
- light and heat energy
- an electron microscope
- plasma
- heat or cold
- hydrogen and oxygen
output: light and heat energy

input with options: Fact 1: Beads of water are formed by water vapor condensing. Fact 2: Condensation is the change of water vapor to a liquid. Given the two facts above, where do beads of water come from?
OPTIONS:
- Too much water
- underground systems
- When the water is too cold
- Water spills
- Vapor turning into a liquid
- Warm air moving into cold air
- At the peak of a mountain
- To another location like underground
output: Vapor turning into a liquid

input with options: Fact 1: Aggression is behavior that is intended to cause harm or pain. Fact 2: Most definitions of aggression include behaviors that are intended to hurt or harm others. Given the two facts above, what behavior causes people to hurt others?
OPTIONS:
- ambitious
- Damages them
- aggression
- complex
- loving
- insects
- smoking
- curious
output:
aggression