Q: Fact 1: Adult echinoderms have radial symmetry. Fact 2: All animals with radial symmetry live in water. Given the two facts above, where do all adult echinoderms live?

OPTIONS:
- soil
- desert
- freshwater
- fossils
- water
- Earth
- small
- aquariums

A: water

Q: Fact 1: If soil is permeable then water easily flows through that soil. Fact 2: Permeability is affected by many soil characteristics. Given the two facts above, what is the rate of water flow of soil?

OPTIONS:
- salinity
- variable
- heat energy
- reduce
- streams.
- streams
- down
- evaporation

A: variable

Q: Fact 1: Aflashlight converts chemical energy into light energy. Fact 2: Abattery is a store of chemical energy. Given the two facts above, how are flashlights powered?

OPTIONS:
- electrically
- burning
- Batteries
- Solar power
- simple
- Powered lightbulbs
- Plugged into the wall
- fossil fuels

A: Batteries

Q: Fact 1: The looseness of soil has a positive impact on a plant 's roots' growth in that soil. Fact 2: Air exchange in the root zone is essential for root growth. Given the two facts above, what can enhance a plant's growth?

OPTIONS:
- sunlight
- tight soil
- Energy.
- loose soil
- Enzymes
- compacted roots
- energy
- compact soil

A:
loose soil