Fact 1: Lungs are used for breathing air by land animals. Fact 2: Elephants are the largest land animals. Given the two facts above, what uses lungs to breathe air?
OPTIONS:
- insects
- plants
- humans
- some mammals
- oxygen
- elephants
- monotremes
- Frogs
elephants

Fact 1: Keeping food cold is used for keeping food fresh. Fact 2: The Purpose of Refrigeration The fundamental reason for having a refrigerator is to keep food cold. Given the two facts above, what is an important function of a refrigertor?
OPTIONS:
- cool the kitchen
- adding heat
- keep meat and vegetables separate
- keep food fresh
- heat energy
- staying warm
- freeze wine
- Electrical energy

Answer: keep food fresh

Question: Fact 1: Radioactive dating is used to determine the age of fossils. Fact 2: Radioactive isotopes are commonly used for dating . Given the two facts above, what is used to determine the age of fossils?
OPTIONS:
- Conifers
- Sediment
- calcite
- skull
- loose soil
- cracking
- exoskeleton
- isotopes
Answer: isotopes

input with options: 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
output: liquid

Q: Fact 1: Minerals are chemical elements that are essential for body processes. Fact 2: Children's bodies are in a developing process. Given the two facts above, what is necessary for a growing child?

OPTIONS:
- four limbs
- stamina
- hydration
- food
- pets
- minerals
- plastics
- a measuring stick

A: minerals

Fact 1: Habitat destruction causes animals to move to find shelter in another habitat. Fact 2: Wildfires can also threaten people's homes and destroy wildlife habitat. Given the two facts above, animals will relocate in response to ?
OPTIONS:
- flooding
- threat of asteroids
- Movement
- influenza
- wildfires
- Pesticides
- ocean radiative transfer
- depression
wildfires