Problem: OPTIONS:
- depress neuronal excitability
- energy of moving objects
- The revolution around earth
- our nearest star
- a hemisphere is tilted away from the sun
- focusing a lens
- flow of electrons
- that material's properties
Q: Fact 1: The moon revolving around the Earth causes the phases of the moon. Fact 2: Phases of the Moon are caused by differing amounts of light reflected from the Earth. Given the two facts above, what causes differing light to reflect off of the moon?
Answer: The revolution around earth

Problem:OPTIONS:
- rivers in tundra regions.
- They have webbed feet
- female sex cells
- epidermis and dermis
- rivers in arid regions.
- streams in arid regions.
- microorganisms
- streams in tropical regions

Fact 1: Caecilians can be found in moist soil near rivers and streams in tropical regions. Fact 2: Caecilians belong to the order Apoda or Gymnophiona. Given the two facts above, members of the Apoda order can be found in _.?
****
A: streams in tropical regions

Fact 1: Roots grow in length and width from primary and secondary meristem. Fact 2: Most plants have roots . Given the two facts above, what can have a primary and secondary meristem?
OPTIONS:
- birds
- plants
- Flowers
- cacti
- fish
- grass
- phytoplankton
- potatoes
plants

Fact 1: Plucking a string can cause that string to vibrate. Fact 2: When something makes a noise it is vibrating. Given the two facts above, plucking a string can cause that string to make what?
OPTIONS:
- colors
- light
- Energy.
- a chime
- flavors
- sound
- noise
- waves

Answer: noise

Question: Fact 1: Aswitch is used to start the flow of current in an electrical circuit. Fact 2: If the switch is open, electricity flows, and the light is on. Given the two facts above, what happens when the light switch is open?
OPTIONS:
- The current can't flow
- adding heat
- It's dark
- The light is off
- The current can flow
- massive damage
- daylight changes
- Earth revolving around the sun
Answer: The current can flow

input: OPTIONS:
- Pollution
- nitric oxide
- smoking
- steroids
- Pesticides
- pollen
- hormones
- hydrogen peroxide Now, answer this question: Fact 1: Smoking causes direct damage to the lungs. Fact 2: With emphysema, there is permanent lung damage in the alveoli. Given the two facts above, emphysema can be caused by?
A:
output:
smoking