input: OPTIONS:
- fossil fuels
- cigarettes
- organic molecules
- Firecrackers
- carbon dioxide
- atoms
- dust
- batteries Now, answer this question: Fact 1: Coal is used to produce electricity by burning in coal-fire power stations. Fact 2: Like coal, petroleum is a fossil fuel. Given the two facts above, what are used to produce energy by burning?
A:
output: fossil fuels

Fact 1: Aging occurs as cells lose their ability to divide. Fact 2: Cell division is by mitosis . Given the two facts above, what happens as mitosis slows for good?

OPTIONS:
- pubescence
- aging
- loss
- fever
- fusion
- birth
- infancy
- death

Answer: aging

Problem: OPTIONS:
- chimp
- snail
- bats
- insects
- monkey
- sharks
- coward
- salmon
Q: Fact 1: Mollusks are invertebrates such as the common snail. Fact 2: An invertebrate is an animal that has no spine, or backbone. Given the two facts above, what has no backbone?
Answer: snail

Problem:OPTIONS:
- food
- mold
- sand
- rabies
- oxygen
- magma
- mildew
- germs

Fact 1: Bacteria can cause people to become ill. Fact 2: Bacteria in the food causes the illness. Given the two facts above, what is a source of illness?
****
A: food

Fact 1: The looseness of soil has a positive impact on a plant 's roots' growth in that soil. Fact 2: Roots are basic to growth, development and expansion. Given the two facts above, what soil helps a plant grow? ?
OPTIONS:
- support
- soft soil
- clay soil
- no soil
- nutrients
- alluvial
- sandy soil
- loose soil
loose soil

Fact 1: Arteries generally carry oxygen-rich blood. Fact 2: Arteries carry blood away from the heart. Given the two facts above, what direction does something that has oxygen-rich blood go?
OPTIONS:
- mouth of rivers
- the body's largest organ
- move to different locations
- Earth orbiting the Sun
- Move to another area
- to move people
- animal transport
- Away from the heart

Answer:
Away from the heart