Fact 1: Rivers are usually larger than streams. Fact 2: Small streams join larger ones and are, themselves, joined by even smaller streams. Given the two facts above, what joins rivers?
OPTIONS:
- vehicles
- loose soil
- sandstones
- ferry
- trail
- skyline
- streams
- Raft
streams
--
Fact 1: Threatening behavior causes a fight-or-flight response in animals. Fact 2: All animals, including fish, are in the Animalia kingdom. Given the two facts above, what behavior causes a fight-or-flight response in those in the Animalia kingdom?
OPTIONS:
- some mammals
- insects
- bullfrogs
- reproductive
- nurturing
- threatening
- foraging
- hypothyroidism
threatening
--
Fact 1: Burning fossil fuels increases the carbon in the atmosphere. Fact 2: Oil is one type of fossil fuel. Given the two facts above, burning what substances increases carbon in the atmosphere?
OPTIONS:
- CO2
- oil
- tar
- gas
- CFCs
- Cars
- coal
- peat
oil
--
Fact 1: Mollusks have a circulatory system with one or two hearts that pump blood. Fact 2: Mollusks have a simple heart, which pumps the blood throughout the body. Given the two facts above, what kind of heart do mollusks have?
OPTIONS:
- organ
- epidermal
- fossils
- ligt
- three
- warmth
- warm
- simple
simple
--