Q: Fact 1: Aplant requires water to grow. Fact 2: Plants wither and die for lack of rain. Given the two facts above, vegetation will wither and die if it doesn't get enough what? | OPTIONS:
- rain
- radiation
- oxygen
- rocks
- energy
- water
- dark
- Energy.
A: water

Q: Fact 1: Moss causes chemical weathering. Fact 2: Bryophytes are mosses, liverworts, and hornworts. Given the two facts above, what can cause chemical weathering? | OPTIONS:
- bryophytes
- moonlight
- cacti
- global warming
- calcite
- viruses
- ferns
- friction
A: bryophytes

Q: Fact 1: If an object is black then that object absorbs all visible light. Fact 2: All ravens are black . Given the two facts above, what absorbs all visible light? | OPTIONS:
- Energy.
- ravens
- bushes
- photons
- our star
- Jellyfish
- bamboo
- barnacles
A: ravens

Q: Fact 1: Aruler is used for measuring the length of an object. Fact 2: Lengths A length is a measure of distance. Given the two facts above, a ruler is used for measuring? | OPTIONS:
- depth
- volume
- dimension
- size
- adding heat
- distance
- speed
- feet
A: distance