Problem:OPTIONS:
- bacteria
- annelids
- sharks
- Exfoliation
- bioaerosols
- plankton
- evaporation
- sunlight

Fact 1: Annelids are worms such as the familiar earthworm. Fact 2: Earthworms are invaluble for soil health. Given the two facts above, what are invaluable for soil health?
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A: annelids

Problem:OPTIONS:
- Chemical energy
- carbon dioxide
- asbestos
- sunlight
- water
- fossil fuels
- cigarettes
- hydrocarbons

Fact 1: Lung cancer is most often caused by exposure to tobacco smoke. Fact 2: Tobacco is most commonly smoked in cigarettes. Given the two facts above, what is lung cancer most often caused by exposure to?
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A: cigarettes

Problem:OPTIONS:
- migraines
- pollen
- cancer
- orchids
- genes
- a cuticle
- A computer
- mitosis

Fact 1: Cell division is more complex in eukaryotes than prokaryotes. Fact 2: Mitosis is cell division. Given the two facts above, what is more complex in eukaryotes than prokaryotes?
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A: mitosis

Problem:OPTIONS:
- matter
- voltage
- Length
- solutes
- glucose
- measure
- Force
- Joules

Fact 1: Blood pressure is highest in arteries and lowest in veins. Fact 2: Blood Pressure Blood Pressure Blood pressure is the force of the blood on the artery walls. Given the two facts above, is highest in arteries and lowest in veins.?
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A:
Force