input: OPTIONS:
- Energy.
- tires
- passengers
- motion
- movement
- heat
- wheels
- energy Now, answer this question: Fact 1: Acar engine usually converts gasoline into motion and heat through combustion. Fact 2: Gasoline vapors are highly combustible. Given the two facts above, car engines convert highly combustible vapors into what?
A:
output: motion

Fact 1: Threatening behavior by predators causes a porcupine to extend its quills. Fact 2: Porcupines only inflate and extend their spines as a defense mechanism. Given the two facts above, porcupine can use its quills as a what?

OPTIONS:
- encoded information
- threatened
- defense mechanism
- cushion
- protective bony armor
- cleaning mechanism
- if humans disturb bears
- brush

Answer: defense mechanism

Problem: OPTIONS:
- Dead leaves
- Most plants
- Pollen grains
- important habitats
- Deep roots
- more abundant
- Chemical energy
- Wet soil
Q: Fact 1: Pollen consists of tiny grains that are the male gametes of plants. Fact 2: Examples of gametes are ova and spermatozoa. Given the two facts above, what are the ova and spermatozoa of plants?
Answer: Pollen grains

Problem:OPTIONS:
- hair
- power
- kinetic
- energy
- mass
- engines
- motility
- clouds

Fact 1: Producing thrust causes something to move. Fact 2: Each engine produces 6,000 lb of thrust. Given the two facts above, what causes something to move?
****
A: engines

Fact 1: Harming an animal species has a negative impact on the population size of that species. Fact 2: Population Population A population is comprised of the individuals of a species within an area. Given the two facts above, harming an animal species has a negative impact on what?
OPTIONS:
- The size of the individuals
- global ecosystems
- The food of the species
- most organisms
- The number of individuals
- living things
- The color of the species
- Abnormal cell growth
The number of individuals

Fact 1: Astronauts require preserved food for extended flights. Fact 2: Almost of process food, canned food and preserved food are decreased in their nutritive value. Given the two facts above, astronauts require what food for extended flights?
OPTIONS:
- Glucose
- canned
- squids
- complete
- sugar
- hydration
- earthworm
- nutrients

Answer:
canned