input: OPTIONS:
- sensory neurons
- Veins and arteries.
- Nervous system
- Stereo system
- Root system
- to move people
- Skeletal system
- insects Now, answer this question: Fact 1: Most invertebrates have a nervous system. Fact 2: Invertebrates are animals without a backbone. Given the two facts above, which type of system do most animals without backbones have?
A:
output: Nervous system

Fact 1: Natural disasters can cause animals to leave an environment. Fact 2: Of all nature's disasters, forest fires are often considered the most frightening. Given the two facts above, what can cause an animal to leave an environment?

OPTIONS:
- too much food
- an animal living in comfort
- A forest fire
- colder weather
- drought
- harmful substances
- deforestation
- nice weather

Answer: A forest fire

Problem: OPTIONS:
- birds to migrate
- animals to hibernate
- Movement
- whales to mate
- ground to shake
- Electrical energy
- flow of electrons
- friction
Q: Fact 1: An earthquake causes the ground to shake. Fact 2: Earthquakes are caused by fault movement. Given the two facts above, a fault movement causes what to happen?
Answer: ground to shake

Problem:OPTIONS:
- Energy.
- a giant earthquake
- circulatory systems
- organic molecules
- a tree falling
- a huge fire
- a great flood
- Solar energy

Fact 1: If a tree falls then sunlight becomes available to the surrounding plants. Fact 2: Plants use sunlight for photosynthesis. Given the two facts above, what can make photosynthesis more accessible to surrounding plants?
****
A: a tree falling

Fact 1: Photosynthesis means producers convert from carbon dioxide, water, and solar energy into carbohydrates for themselves. Fact 2: Photosynthesis is the conversion of electromagnetic energy into stored chemical energy. Given the two facts above, what type of stored chemical energy do plants create?
OPTIONS:
- Green beans
- Organic compounds
- Calories
- Carbohydrates
- our star
- food and shelter
- Fat
- Proteins
Carbohydrates

Fact 1: When electricity flows to a light bulb , the light bulb will turn on. Fact 2: Coal-fired electric generation is a low cost source of electricity. Given the two facts above, a light bulb will turn on when something generated from what flows to it?
OPTIONS:
- energy
- gas
- sun
- SO2
- copper
- Coal
- matter
- wind

Answer:
Coal