Fact 1: An animal requires stamina to succeed at physical activities. Fact 2: Mustangs are noted for their stamina and endurance. Given the two facts above, mustangs are noted for abilities in what?

OPTIONS:
- physical activities
- to move people
- circulatory systems
- the body's largest organ
- sense organs
- smell and taste
- genetic diversity
- Chemical energy

Answer: physical activities

Fact 1: Nuclear reactions in stars causes stars to produce light. Fact 2: Light contains energy. Given the two facts above, what do nuclear reactions in stars cause?

OPTIONS:
- heat energy
- Change colors
- production of energy
- hydrogen and oxygen
- only black holes
- destruction of energy
- creation of life
- harmful substances

Answer: production of energy

Fact 1: Aplanet rotating causes cycles of day and night on that planet. Fact 2: Rotation simply means how long it takes a planet to spin on its axis. Given the two facts above, what causes day and night cycles on a planet?

OPTIONS:
- seasons
- carbon dioxide
- flow of electrons
- gravitational pull
- fissures of hot, acidic water
- spinning on its axis
- heat energy
- energy of moving objects

Answer: spinning on its axis

Fact 1: Sonar is used to find the location of an object. Fact 2: Sonar bounces sound waves off the bottom of the ocean. Given the two facts above, what can be bounced off the ocean floor to located objects?

OPTIONS:
- soundwaves
- rubber balls
- submarines
- whale bones
- electricity
- rays or beams
- light
- satellites

Answer:
soundwaves