Problem:OPTIONS:
- motion
- weight
- pressure
- health
- cycles
- driving
- Energy.
- speed

Fact 1: Pushing on the pedals of a bike cause that bike to move. Fact 2: Speed is controlled by pedalling and by pushing back on the moving pedals. Given the two facts above, what is controlled by pushing on bike pedals?
****
A: speed

Problem:OPTIONS:
- consumers
- Solar
- Motion
- to move people
- sensory neurons
- Wind
- it needs them
- Electrical

Fact 1: Adoorbell converts electrical energy into sound. Fact 2: Speakers convert electrical energy into sound waves. Given the two facts above, what energy does a door doorbell need to be heard through speakers?
****
A: Electrical

Problem:OPTIONS:
- mass and density
- the looseness of soil
- retaining heat
- direct damage to the lungs
- systolic blood pressure
- major threat to health
- metabolic reaction
- Veins and arteries.

Fact 1: Constriction occurs when the muscular walls of blood vessels contract. Fact 2: Systolic blood pressure is the force of blood on the blood vessel walls when the heart contracts. Given the two facts above, constricting raises what?
****
A: systolic blood pressure

Problem:OPTIONS:
- a hemisphere is tilted away from the sun
- high-mass stars collapsing
- tectonic plates being pushed together
- Two things found in Florida
- Two things that come together in San Andreas
- Two things found in Washington DC
- Sudden shaking of the ground.
- Two things found in Manhattan

Fact 1: The movement of tectonic plates causes volcanic eruptions. Fact 2: The San Andreas is a "transform fault" that marks the boundary between two tectonic plates -- the North American and the Pacific. Given the two facts above, what causes volcanic eruptions?
****
A:
Two things that come together in San Andreas