Fact 1: Decomposition increases amount of organic matter in soil. Fact 2: Carbon is in every organic compound. Given the two facts above, what increases the amount of carbon in soil?

OPTIONS:
- oxygen
- decomposition
- nutrients
- chlorofluorocarbons
- rainfall
- fossil fuels
- wind
- water

Answer: decomposition

Problem: OPTIONS:
- Renewable energy
- Electrical energy
- kinetic energy
- electromagnetic energy
- an engine
- transportation technology
- Solar energy
- Oil
Q: Fact 1: Microbial fuel cells convert chemical energy into electrical energy. Fact 2: Fuel cells are devices that directly convert hydrogen into electricity. Given the two facts above, what do microbial fuel cells transform hydrogen into?
Answer: Electrical energy

Problem:OPTIONS:
- Evaporation
- sweating
- our star
- cigarettes
- coal
- fossil fuels
- sunlight
- photons

Fact 1: If an object is in the sunlight then that object will absorb solar energy. Fact 2: When solar energy reaches the earth's surface it is absorbed and reradiated as heat. Given the two facts above, an object in the what will absorb energy and then re-radiate it as heat?
****
A: sunlight

Fact 1: Viruses are so small that they can be seen only with an electron microscope. Fact 2: Where most viruses are DNA, HIV is an RNA virus. Given the two facts above, what is so small it can only be seen with an electron microscope?
OPTIONS:
- clouds
- cell
- DNA
- ovum
- HIV
- magnified
- h2o
- RNA
HIV

Fact 1: Eyes are used for seeing by animals by sensing light. Fact 2: Visible and invisible light is energy in the form of electromagnetic waves. Given the two facts above, eyes are used by animals for seeing by sensing what?
OPTIONS:
- focusing a lens
- an electron microscope
- objects that have mass
- chemical messengers
- basic building blocks of life
- electromagnetic waves
- matter vibrating
- rain or sun shine

Answer: electromagnetic waves

input with options: Fact 1: Playing is one way mammals and other animals learn how to behave. Fact 2: Dolphins and whales are mammals. Given the two facts above, what uses play to learn how to behave?
OPTIONS:
- athletes
- offspring
- humans
- dolphins
- density
- theater
- ants
- people
output:
dolphins