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?
OPTIONS:
- friction
- vibration
- voltage
- energy
- power
- bamboo
- mechanical
- heat energy
vibration

Fact 1: Vinegar can cause harm to the eyes. Fact 2: Adill pickle absorbs the vinegar it is soaked in. Given the two facts above, what can dill pickles do to eyes?
OPTIONS:
- help them focus
- kill them
- reduce swelling
- harm them
- Change colors
- increase vision ability
- Relieve pain
- protect them

Answer: harm them

Question: Fact 1: Adult echinoderms have radial symmetry. Fact 2: Modern echinoderms include starfish and sea urchins. Given the two facts above, what has radial symmetry?
OPTIONS:
- sea urchins
- A Greek letter
- humans
- Most plants
- peachleaf willow
- catfish
- gastropod shells
- ducks
Answer: sea urchins

input with options: Fact 1: All animals are heterotrophs. Fact 2: Heterotrophics means fed by others. Given the two facts above, all animals are what?
OPTIONS:
- fed by hand
- homogenous
- fed by others
- parasites
- fed red meat
- fed whole grains
- important habitats
- insects
output: fed by others

Q: Fact 1: Chemical weathering causes iron in rock to oxidize. Fact 2: Limestone is a fairly common rock type. Given the two facts above, chemical weathering causes iron to oxidize in what?

OPTIONS:
- calcite
- limestone
- In sediment
- the skin
- graptolites
- loose soil
- body water
- soils

A: limestone

Fact 1: Plants use cellulose for their cell walls. Fact 2: Leaf blades contain cellulose and hemi-cellulose that are readily broken down by microbes. Given the two facts above, plants cell walls are readily broken down by what?
OPTIONS:
- Heavy rains
- heat energy
- acetic acid
- microbes
- fossil fuels
- heat
- bacteria
- chemicals
microbes