Problem:OPTIONS:
- limes
- porous
- complex
- made
- electrons
- cells
- white
- helium atoms

Fact 1: Cells are the microscopic building blocks of organisms. Fact 2: Coral reefs are limestone formations composed of tiny sea organisms and their remains. Given the two facts above, the microscopic building blocks of coral reefs are?
****
A: cells

Problem:OPTIONS:
- survival
- cells
- science
- humans
- mold
- plants
- Pollution
- light

Fact 1: Amold spore has a negative impact on the respiratory system. Fact 2: From that time on, the respiratory system supplies the body with the oxygen it needs to survive. Given the two facts above, what do mold spores have a negative impact on?
****
A: survival

Problem:OPTIONS:
- lagoon
- graptolites
- a cuticle
- barnacles
- bioaerosols
- cave
- coral reef
- salt and water.

Fact 1: Many corals secrete an exoskeleton that builds up to become a coral reef. Fact 2: Coral reefs are made up of the accumulated exoskeletons of the coral polyp. Given the two facts above, what do coral polyps form?
****
A: coral reef

Problem:OPTIONS:
- space
- water
- animals
- humans
- A computer
- clouds
- energy
- engines

Fact 1: Awindmill converts wind energy into electricity primarily by using mechanical energy. Fact 2: Todays computers use electricity and silicon chips. Given the two facts above, what can a windmill provide energy for?
****
A:
A computer