Q: Fact 1: Fire converts chemical energy into light and heat energy. Fact 2: And since infrared energy is heat, it warms the Earth. Given the two facts above, what converts chemical energy into light and warmth for earth? | OPTIONS:
- tulips
- wind
- algae
- trees
- earth
- fire
- water
- Green
A: fire

Q: Fact 1: Alight bulb requires electrical energy to produce light. Fact 2: Black numbers on a white background are easier to see in darkness or bright light. Given the two facts above, bulbs produce electrical energy to what? | OPTIONS:
- reproduce
- Change colors
- rain or sun shine
- adding heat
- look at the sun
- power up cars
- see in darkness
- walk through yards
A: see in darkness

Q: Fact 1: Landfills have a negative impact on the environment. Fact 2: Landfill leachates and groundwater contamination. Given the two facts above, what have a negative impact on the environment? | OPTIONS:
- harmful substances
- groundwater contamination
- harvesting
- fish
- major threat to health
- Sulfur dioxide
- storms
- Greenhouse gases
A: groundwater contamination

Q: Fact 1: Some parasites kill their host, but most do not. Fact 2: Nutrients of the host are most likely absorbed through the body surface of the parasite. Given the two facts above, where do parasites get their nutrients? | OPTIONS:
- an area swollen with pus
- water
- an organism's body
- they body they live in
- minerals
- eat plants or other animal
- aqueous solution
- dead hosts
A: they body they live in