Fact 1: Plants that are adapted to very dry environments are called xerophytes. Fact 2: Succulents, bromeliads and cacti are xerophytes. Given the two facts above, cacti are adapted to what?
OPTIONS:
- the snow
- dry environments
- Animal survival
- survival
- tropical regions
- moist environments
- relocation
- salt and water.
dry environments

Fact 1: Endocrine hormones travel throughout the body in the blood. Fact 2: Endocrine glands secrete directly into the blood. Given the two facts above, what do glands secrete?
OPTIONS:
- Energy.
- thiamine
- vitamins
- allow growth
- Energy
- hormones
- Bodily water
- brain

Answer: hormones

Question: Fact 1: Coal is used for generating heat by burning. Fact 2: CO 2 and SO 2 are both given off when coal is burned to provide heat or to generate electricity. Given the two facts above, when is coal burning _ is given off?
OPTIONS:
- CO 2
- energy
- vaporization
- SO2
- pollution
- oxygen
- carbon
- smoke
Answer: CO 2

input with options: Fact 1: If gas is heated then that gas will expand. Fact 2: Chlorine is a type of Green Cross gas. Given the two facts above, what will expand when heated?
OPTIONS:
- arteries
- water vapor
- breathing
- viewing
- condensation
- a prism
- glass
- chlorine
output: chlorine

Q: Fact 1: Echinoderms lack respiratory and excretory systems. Fact 2: Starfish and sea urchins are also echinoderms. Given the two facts above, what kind of animal doesn't have a respiratory or excretory system?

OPTIONS:
- a fish
- bears
- ant
- whale
- humans
- starfish
- mammals
- llama

A: starfish

Fact 1: When a river floods , that river deposits soil in flood plains. Fact 2: By far the mightiest of the great rivers is the Amazon . Given the two facts above, when the Amazon floods it deposits what in flood plain?
OPTIONS:
- earth
- cities
- rocks
- dirt
- seawater
- Sand
- saltwater
- soil
soil