Problem: OPTIONS:
- Bend
- strength
- exercise
- ligt
- It expands
- shorten
- Vibrates
- stay warm
Q: Fact 1: Muscle contraction occurs when muscle fibers get shorter. Fact 2: Movement is based on the contraction of muscles. Given the two facts above, what do muscle fibers need to do to enable movement?
Answer: shorten

Problem:OPTIONS:
- reflection
- an electron lens
- chromatic dispersion
- greenhouse gases
- water condensation
- deoxyribonucleic acid
- Males and females
- movement of tectonic plates

Fact 1: Arainbow is formed by refraction of light by separating light into all different colors. Fact 2: Rainbow A most charming example of chromatic dispersion is a rainbow. Given the two facts above, what is formed by refraction of light by separating light into all different colors?
****
A: chromatic dispersion

Fact 1: Riding a bike does not cause pollution. Fact 2: Carbon monoxide is, of course, an air pollutant. Given the two facts above, what doesn't riding a bike cause?
OPTIONS:
- Allergies
- harmful substances
- Decrease bodily water
- Greenhouse gasses
- carbon monoxide
- global warming
- Dehydration
- chemical changes
carbon monoxide

Fact 1: Sexual reproduction increases genetic diversity. Fact 2: Evolution requires genetic diversity. Given the two facts above, what tool can enable evolution?
OPTIONS:
- By coral exoskeletons
- genetic bottle necks
- animals with backbones
- extinction
- A computer
- Deoxyribonucleicacid
- sexual reproduction
- theory of evolution

Answer: sexual reproduction

Question: Fact 1: Freezing causes a solid to form. Fact 2: Ice is a solid, it's cold and it's hard. Given the two facts above, what freezes into ice?
OPTIONS:
- liquid
- gas
- lipids
- coal
- water
- rivers
- hair
- lead
Answer: water

input: OPTIONS:
- wind
- rubber
- batteries
- watershed
- salinity
- Earthworms
- compost
- acid Now, answer this question: Fact 1: Air pollution can cause the pH of soil to decrease. Fact 2: Compost balances the pH of soil. Given the two facts above, what balances the effect of air pollution in soil?
A:
output:
compost