Q: Fact 1: Birds are endothermic tetrapod vertebrates. Fact 2: Bird A bird is an animal with feathers. Given the two facts above, what is an endothermic tetrapod vertebrates? | OPTIONS:
- warm-blooded
- passenger pigeons
- remains of prehistoric life
- Humans
- An animal with feathers.
- All animals with vertebrae.
- Dogs.
- They have thick fur
A: An animal with feathers.

Q: Fact 1: When a cooler object touches a warmer object , thermal conduction occurs. Fact 2: Thermal conduction removes heat from the center. Given the two facts above, what happens when a cooler object touches a warmer object? | OPTIONS:
- Temperature changing
- they die
- thermometer
- flow of electrons
- heat removed from the center
- matter vibrating
- h2o loss
- converting electricity to heat
A: heat removed from the center

Q: Fact 1: Using renewable resources to generate power reduces greenhouse gases. Fact 2: Hydropower is a renewable resource. Given the two facts above, what does hydropower help reduce? | OPTIONS:
- deforestation
- Greenhouse gases
- enormous damage to homes
- salinity
- energy usage
- flooding
- massive damage
- Temperature
A: Greenhouse gases

Q: Fact 1: Having food has a positive impact on an organism 's health. Fact 2: Many fast food restaurants have published the nutrient content of their foods. Given the two facts above, what has a positive impact on an organisms' health? | OPTIONS:
- hunting predators
- eating pebbles
- eating bugs
- exercise
- circulatory systems
- hydrogen and oxygen
- nutrient content
- coral reef
A: nutrient content