Fact 1: An animal usually requires a warm body temperature for survival. Fact 2: Mammals are warm blooded animals. Given the two facts above, what requires a warm body temperature for survival?

OPTIONS:
- trout
- humans
- tuna
- pigeons
- mammals
- leeches
- Lobsters
- octopus

Answer: mammals

Fact 1: Powering an electrical device with a battery requires a path for electricity to flow through a closed circuit. Fact 2: Electrons flow continuously in a closed circuit. Given the two facts above, powering an electrical device with a battery requires a path for electrons to what?

OPTIONS:
- hydrogen and oxygen
- spread out
- electromagnetic energy
- cut the line
- flow continuously
- an electron microscope
- flood
- kinetic energy

Answer: flow continuously

Fact 1: Acactus stem is used for storing water. Fact 2: Typically, the liquid is water. Given the two facts above, a cactus stem is used for storing what?

OPTIONS:
- dust
- rain
- excretory
- nutrients
- excretion
- food
- liquid
- ice

Answer: liquid

Fact 1: Biofuel is used to produce electricity by burning. Fact 2: Wood and straw are both examples of biofuels. Given the two facts above, what can be done to wood and straw to produce electricity? ?

OPTIONS:
- massive damage
- It can be crushed
- adding heat
- It can be burned.
- matter vibrating
- It can be boiled
- Plant growth is reduced
- it can be chopped

Answer:
It can be burned.