Fact 1: Ablack hole is formed by a high-mass star collapses. Fact 2: Black hole excites astronomers. Given the two facts above, what do astronomers get excited about?

OPTIONS:
- movements in the earth's crust
- Earth revolving around the sun
- earth's core
- earthworms
- animals
- tectonic plates being pushed together
- Continents drifting
- high-mass stars collapsing

Answer: high-mass stars collapsing

Fact 1: Viruses infect and live inside the cells of living organisms. Fact 2: Plants are complex living organisms. Given the two facts above, plants can be infected by what?

OPTIONS:
- human pathogens
- infected meat
- Pesticides
- insects
- human papillomavirus
- viruses
- fungi
- bacteria

Answer: viruses

Fact 1: Spores may be dispersed by moving water, wind, or other organisms. Fact 2: Spores are a dormant form of bacteria. Given the two facts above, a dormant form of what may be dispersed by moving water, wind or other organisms?

OPTIONS:
- orchids
- Flowers
- seeds
- pollen
- bacteria
- ferns
- Chlorophyll
- fungi

Answer: bacteria

Fact 1: The vanes rotating in an electric fan causes air to move. Fact 2: Turbines are usually made with a series of curved vanes on a central rotating spindle. Given the two facts above, what part of an electric fan causes air to move?

OPTIONS:
- cover
- mechanism
- heat energy
- electrically
- turbines
- cycles
- fan base
- heat

Answer:
turbines