Problem: OPTIONS:
- less water
- Depositions
- They're manmade
- erosion
- Water expanding
- Thunderstorms
- They're made by animals
- rainfall
Q: Fact 1: Stalactites are formed by deposition. Fact 2: Limestone caves displaying stalactites. Given the two facts above, how are limestone caves formed?
Answer: Depositions

Problem:OPTIONS:
- parasites
- animals
- producers
- fungi
- bacteria
- phytoplankton
- plants
- humans

Fact 1: Heterotrophs are living things that cannot make their own food. Fact 2: All animals are heterotrophic. Given the two facts above, what cannot make their own food?
****
A: animals

Fact 1: Plants respond to daily and seasonal cycles and to disease. Fact 2: Temperature follows a seasonal cycle. Given the two facts above, what do plants respond to?
OPTIONS:
- Chemical energy
- Vibrations
- heat energy
- Sulfur dioxide
- Temperature
- sun's heat
- Clouds
- Wood
Temperature

Fact 1: Insects may live in large colonies and have complex social behaviors. Fact 2: Insects are just part of the Arthropod subdivision. Given the two facts above, what kind of animal can live in large colonies and have complex behaviors?
OPTIONS:
- arthropods
- warm-blooded
- birds
- mammals
- animals
- honeybees
- fur seals
- fish

Answer: arthropods

Question: Fact 1: The gravitational pull of the Moon on Earth 's oceans causes the tides. Fact 2: High tide is when the best waves come in. Given the two facts above, what does the gravitational pull of the Moon on Earth 's oceans cause?
OPTIONS:
- Energy.
- two
- waves
- fires
- the Sun
- sunlight
- rivers
- erosion
Answer: waves

input: OPTIONS:
- Toxins
- CO 2
- liquid
- salt
- Lead
- Carbon
- Acids
- sulfur Now, answer this question: Fact 1: Freshwater biomes have water that contains little or no salt. Fact 2: Freshwater biomes have suffered mainly from pollution. Given the two facts above, biomes that have suffered mainly from pollution have water that contains little or no what?
A:
output:
salt