Q: Fact 1: Coal is used for generating heat by burning. Fact 2: Heat comes out the top and can be used for cooking or space heating. Given the two facts above, food can be cooked using what? | OPTIONS:
- lipids
- energy
- corn
- fats
- sugar
- rice
- Coal
- oil
A: Coal

Q: Fact 1: Viruses cause many human diseases. Fact 2: Examples include influenza, rabies, HIV, and Herpes viruses. Given the two facts above, what causes human disease? | OPTIONS:
- HPV
- UV
- minerals
- Tamiflu
- mold
- HIV
- human growth
- CFCs
A: HIV

Q: Fact 1: Vertebrates are animals that have a backbone. Fact 2: Vertebrates generally have a backbone called the spinal column. Given the two facts above, if an animal has a spinal column in their skeletal system what is it called? | OPTIONS:
- skeletal animal
- vertebrate
- A Greek letter
- invertebrated
- organ
- critical organs
- spined animal
- epidermal
A: vertebrate

Q: Fact 1: Decomposition increases amount of organic matter in soil. Fact 2: Bacteria initiate decomposition of plants. Given the two facts above, what would increase the amount of organic matter in soil? | OPTIONS:
- coal
- fossil fuels
- Pesticides
- mussels
- bacteria
- nutrients
- burning
- shrub beds
A: bacteria