Problem:OPTIONS:
- nectar
- food
- bored
- kicked
- warmth
- looser
- anemia
- fever

Fact 1: Playing is one way mammals and other animals learn how to behave. Fact 2: Bored animals play, according to Spencer. Given the two facts above, what do animals get?
****
A: bored

Problem:OPTIONS:
- producing energy
- Movement of an air mass
- animal transport
- cutting hair
- spread flower seeds
- Metling snow
- smoking cigarettes
- freezing ice

Fact 1: Wind is used for producing electricity. Fact 2: Electrical energy is also energy. Given the two facts above, what is wind used for?
****
A: producing energy

Problem:OPTIONS:
- getting too cold after a shower
- decomposing dead organisms
- staying up too late when sick
- influenza orthomyxoviruses
- scraping oneself on a contaminated object
- Microscopic organisms
- smallest agents of disease
- bruising oneself after a fall

Fact 1: Scraping oneself on a contaminated object may cause infection. Fact 2: Infection can cause meningitis. Given the two facts above, meningitis can be caused by what?
****
A: scraping oneself on a contaminated object

Problem:OPTIONS:
- nitrogen fixation
- Greenhouse gasses
- fossil fuels
- chlorofluorocarbons
- freezing
- erosion
- rainfall
- decomposition

Fact 1: Decomposition increases amount of organic matter in soil. Fact 2: Organic Matter Organic matter is the varied array of carbon-containing compounds in the soil. Given the two facts above, what increases the amount of carbon-containing compounds in the soil?
****
A:
decomposition