Fact 1: An earthquake causes the ground to shake. Fact 2: Landslides are often triggered by the shaking of earthquakes. Given the two facts above, what causes landslides?

OPTIONS:
- earthquakes
- deforestation
- scattered light
- rainfall
- Water expanding
- erosion
- mouth of rivers
- flooding

Answer: earthquakes

Fact 1: Echinoderms lack respiratory and excretory systems. Fact 2: Starfish and sea urchins are also echinoderms. Given the two facts above, what lack respiratory and excretory systems?

OPTIONS:
- fish
- graptolites
- starfish
- waste
- humans
- barnacles
- insects
- ferns

Answer: starfish

Fact 1: Earthworms are important deposit feeders that help form and enrich soil. Fact 2: Life Cycle Earthworms are hermaphrodites. Given the two facts above, what is an important deposit feeder that helps form and enrich soil?

OPTIONS:
- A reptile
- swamp vegetation
- bacteria
- A male
- shrub beds
- A hermaphrodite
- An amphibian
- peachleaf willow

Answer: A hermaphrodite

Fact 1: Arteries generally carry oxygen-rich blood. Fact 2: Arteries carry blood away from the heart. Given the two facts above, what direction does something that has oxygen-rich blood go?

OPTIONS:
- mouth of rivers
- the body's largest organ
- move to different locations
- Earth orbiting the Sun
- Move to another area
- to move people
- animal transport
- Away from the heart

Answer:
Away from the heart