Question: Q: Collisions between hydrogen atoms demonstrate one form of what? A:
OPTIONS:
- nuclear reaction
- destructive fusion
- nuclear radiation
- nuclear fusion
Answer: nuclear fusion

input with options: Q: Millions of years ago, plants used energy from the sun to form what? A:
OPTIONS:
- fossil fuels
- evolution
- greenhouse gases
- carbon compounds
output: carbon compounds

Q: Q: What type of electrons does carbon have? A:

OPTIONS:
- shell
- ionic
- gradient
- valence

A: valence

input: OPTIONS:
- mechanical push
- mechanical pull
- force multiplier
- mechanical advantage Now, answer this question: Q: What is is a measurement of the force amplification of a machine? A:
A:
output: mechanical advantage

Q: What is only effective if ventilation is matched to blood flow through alveolar capillaries? A:

OPTIONS:
- iron lung
- blood pressur control
- assisted breathing
- breathing control

Answer: breathing control

Q: Q: Although they are as different as deserts and wetlands, all of these ecosystem units have populations of interacting species? A:

OPTIONS:
- corals
- continents
- zoos
- biomes

A:
biomes