input: OPTIONS:
- Evaporation
- It decreases
- composting
- heating liquids
- food
- pruning
- drink
- dirt Now, answer this question: Fact 1: Changes in the pH of soil can cause plants to die. Fact 2: Compost balances the pH of soil. Given the two facts above, how do you balance the acidity of soil?
A:
output: composting

Fact 1: Vertebrates are all chordates that have a backbone. Fact 2: Mammals are like other chordates in that they have backbones. Given the two facts above, what are like other vertebrates that have a backbone?

OPTIONS:
- animals
- sharks
- vibrations
- sound
- mammals
- alpacas
- bees
- cows

Answer: mammals

Problem: OPTIONS:
- salt
- Joules
- water
- fats
- heat
- glass
- sugar
- coal
Q: Fact 1: Adding salt to a solid decreases the freezing point of that solid. Fact 2: Water density decreases with temperature and increases with salt content. Given the two facts above, what content increases melting points of solids?
Answer: salt

Problem:OPTIONS:
- sodium
- fur
- food
- oxygen
- ice
- water
- fats
- music

Fact 1: An animal requires nutrients for survival. Fact 2: Food is the ideal source of nutrients. Given the two facts above, what does an animal require for survival?
****
A: food

Fact 1: Digestion is the process of breaking down food into components the body can absorb. Fact 2: Fish and rice are the staple foods. Given the two facts above, digestion breaks down what into components the body can absorb?
OPTIONS:
- breathing
- fat
- Fruits
- sugar
- boiling
- rice
- apples
- cooking
rice

Fact 1: Roundworms make up the phylum Nematoda. Fact 2: Within the Nematoda, a range of reproductive systems occur. Given the two facts above, what has a range of sexual reproductive systems? ?
OPTIONS:
- Computer systems.
- Most plants
- animals
- Roundworms.
- mammals
- Art reproductions.
- insects
- Stuffed toy bears.

Answer:
Roundworms.