Q: Fact 1: Aplant requires sunlight to grow. Fact 2: Sunlight is turned into energy by plants. Given the two facts above, sunlight is made of ? | OPTIONS:
- Prism
- lightning
- colors
- glass
- chlorophyll
- dirt
- energy
- photons
A: energy

Q: Fact 1: Amold spore has a negative impact on the respiratory system. Fact 2: Respiratory symptoms include difficulty breathing, wheezing, and stridor. Given the two facts above, a mold spore has a negative impact on what? | OPTIONS:
- vehicles
- humans
- breathing
- gasoline
- dirt
- disease
- rocks
- cells
A: breathing

Q: Fact 1: Playing is just one of many ways that mammals and other animals learn how to behave. Fact 2: People behave as a result of a complex interaction. Given the two facts above, what is a complex interaction shared by mammals and other animals? | OPTIONS:
- seeing
- firm hugs
- food
- staring
- power
- blinking
- sound
- playing
A: playing

Q: Fact 1: Heat can change the state of matter. Fact 2: Plasma, the fourth state of matter, can be created on earth by supplying sufficient heat. Given the two facts above, what is plasma created with? | OPTIONS:
- heat
- Urea
- Gases
- oxygen
- energy
- a star
- immune
- cells
A: heat