Q: Fact 1: An animal requires warmth for survival. Fact 2: Birds huddle together for warmth. Given the two facts above, birds do what for survival?

OPTIONS:
- population movement
- drive
- sparrows
- storing water
- reproduce
- huddle together
- genetic diversity
- hibernate

A: huddle together

input: OPTIONS:
- friction
- vibration
- voltage
- energy
- power
- bamboo
- mechanical
- heat energy Now, answer this question: Fact 1: Plucking a string can cause that string to vibrate. Fact 2: Nylon string is by far the softest sound on the guitar. Given the two facts above, what do guitars make sound with?
A:
output: vibration

Fact 1: Cells vary in size as well as shape, but all cells are very small. Fact 2: Basic unit of the plant body is the cell. Given the two facts above, what may vary in size as well as shape, but all are very small?

OPTIONS:
- keeping food fresh for long periods of time
- disease-causing microorganisms
- A solid geometric shape
- Unequal radiation absorption
- Small countries.
- Shapewear.
- A water well.
- Basic units of the plant body.

Answer: Basic units of the plant body.

Problem: OPTIONS:
- photosynthesis
- Light passing through water
- Cold air mixing with water
- Hot air passing through water
- Evaporation of water
- focusing a lens
- photosyntehsis
- Water passing through light
Q: Fact 1: Water causes refraction of light. Fact 2: Rainbows are formed when sunlight is refracted through raindrops. Given the two facts above, how are rainbows formed?
Answer: Light passing through water

Problem:OPTIONS:
- puddles
- energy
- light
- rainbows
- ponds
- an image
- a prism
- lakes

Fact 1: Sunlight and rain can cause a rainbow. Fact 2: Rainbows are caused by internal reflection and refraction of sunlight or moonlight inside raindrops. Given the two facts above, what do sunlight reflections in raindrops make?
****
A: rainbows

Problem:OPTIONS:
- a hydraulic system
- rays or beams
- deoxyribonucleic acid
- kinetic energy
- encoded information
- sensory neurons
- circulatory systems
- Loud noises

Fact 1: Adoorbell converts electrical energy into sound. Fact 2: Electricity is a kinetic energy. Given the two facts above, a doorbell converts _ into sound?
****
A:
kinetic energy