Problem:OPTIONS:
- It's always brown
- electrically
- It's random
- Depends on the gender
- Encoded in DNA
- it can be seen
- permineralization
- Dilution

Fact 1: Characteristics that are encoded in DNA are called genetic traits. Fact 2: Like eye color in humans it is a genetic trait. Given the two facts above, how is eye color determined?
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A: Encoded in DNA

Fact 1: Cells are the basic units of the structure and function of living things. Fact 2: Proteins are needed for cell building. Given the two facts above, what do living things need?
OPTIONS:
- sunlight
- body water
- religion
- water
- oxygen
- protein
- ghosts
- fun
protein

Fact 1: Roundworms make up the phylum Nematoda. Fact 2: Roundworm Roundworms have complete digestive tracks. Given the two facts above, what kind of digestive tracks do nematoda have?
OPTIONS:
- homogenous
- complete
- heat or cold
- ligt
- food
- grow
- organ
- allow growth

Answer: complete

Question: Fact 1: Abattery converts chemical energy into electrical energy. Fact 2: Check the fire alarm's batteries the first of each month. Given the two facts above, what converts chemical energy into electrical energy?
OPTIONS:
- Something in a fire alarm
- sperm and egg fuse
- Males and females
- igniting fuel and oxidiser
- The bending of a ray of light
- basic building blocks of life
- sensory neurons
- mechanical waves
Answer: Something in a fire alarm

input with options: Fact 1: Most invertebrates have a nervous system. Fact 2: Invertebrates are animals without a backbone. Given the two facts above, which type of system do most animals without backbones have?
OPTIONS:
- sensory neurons
- Veins and arteries.
- Nervous system
- Stereo system
- Root system
- to move people
- Skeletal system
- insects
output: Nervous system

Problem: OPTIONS:
- Greenhouse gases
- movements in the earth's crust
- Increase in carbon dioxide
- Greenhouse gasses
- forest is destroyed
- Burning fuel and air
- movement of tectonic plates
- tectonic plates being pushed together
Q: Fact 1: Carbon dioxide concentrations in the air have increased over the last decade dramatically. Fact 2: Carbon dioxide is the chief culprit in the increased threat of global warming in recent decades. Given the two facts above, what has led to the increase in global warming?
Answer:
Increase in carbon dioxide