Q: Fact 1: Urine is the liquid waste product of the body that is excreted by the urinary system. Fact 2: After urination, dry the end of the penis and replace the foreskin. Given the two facts above, what comes out the end of the penis? | OPTIONS:
- Chemical energy
- liquid waste
- A Greek letter
- Energy
- feces
- Electrical energy
- solid waste
- distilled water
A: liquid waste

Q: 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? | OPTIONS:
- Chemical energy
- carbon dioxide
- asbestos
- sunlight
- water
- fossil fuels
- cigarettes
- hydrocarbons
A: cigarettes

Q: Fact 1: Abreathing mask is used for keeping harmful particles from entering the respiratory system. Fact 2: All smoke is harmful to the respiratory system. Given the two facts above, what keeps smoke out of the respiratory system? | OPTIONS:
- Cooking
- Masks
- Glasses
- skin
- Gloves
- Hats
- Urea
- oxygen
A: Masks

Q: Fact 1: An automobile engine transforms chemical energy into mechanical energy. Fact 2: Mechanical energy is the energy of moving objects. Given the two facts above, an automobile engine transforms chemical energy into what? | OPTIONS:
- driving
- Greenhouse gases
- moving objects
- Something to move
- meals on wheels
- bricks on streets
- vehicles
- cars on bricks
A: moving objects