Problem:OPTIONS:
- CFCs
- HPV
- soil
- Cars
- wind
- CO2
- water
- nitrogen

Fact 1: Global warming is when worldwide temperature increases. Fact 2: Global warming blamed on CO2. Given the two facts above, what is blamed for temperature increases?
****
A: CO2

Fact 1: Burning wood is used to produce heat. Fact 2: Food is cooked by the steam and heat. Given the two facts above, what is burning wood used for?
OPTIONS:
- making trees
- staying warm
- engines
- replanting trees
- cooking food
- removing heat
- Electrical energy
- warmth
cooking food

Fact 1: Mating is generally preceded by courtship. Fact 2: Moose courtship begins in autumn. Given the two facts above, moose what happens around autumn?
OPTIONS:
- mating
- Winter
- migrate
- complex
- howling
- interact
- movement
- moves

Answer: mating

Question: Fact 1: Acavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone. Fact 2: Any time water and carbon dioxide mix, carbonic acid is the result. Given the two facts above, which of the following added to groundwater creates caverns?
OPTIONS:
- a solute
- permineralization
- calcite
- storing water
- flooding
- salinity
- carbon dioxide
- heating liquids
Answer: carbon dioxide

input with options: Fact 1: Heating an egg causes a chemical reaction in the egg. Fact 2: Eggs, cooked in their shell, can explode, causing second degree burns. Given the two facts above, heating an egg can make it what?
OPTIONS:
- chill
- survive
- dormant
- fertile
- freeze
- implode
- expode
- stay warm
output: expode

Problem: OPTIONS:
- animals
- amoeba
- sharks
- insects
- mammals
- Man
- coral
- bats
Q: Fact 1: Many corals secrete an exoskeleton that builds up to become a coral reef. Fact 2: Hard corals build by secreting calcium carbonate skeletons. Given the two facts above, what constructs an exoskeleton using calcium carbonate?
Answer:
coral