Question: Q: Why do birds need a light-weight body? A:
OPTIONS:
- for cooling
- water flotation
- food shortages
- to stay aloft
Answer: to stay aloft

input with options: Q: Which theory describes the distribution of electrons in molecules in much the same way that the distribution of electrons in atoms is described using atomic orbitals? A:
OPTIONS:
- molecular distribution theory
- atomic orbital theory
- atomic distribution theory
- molecular orbital theory
output: molecular orbital theory

Q: Q: Prosimians are thought to be more similar to the earliest of these? A:

OPTIONS:
- rodents
- fish
- insects
- primates

A: primates

input: OPTIONS:
- complex microscopes
- scientific microscopes
- nuclear microscopes
- electron microscopes Now, answer this question: Q: What powerful microscopes use a beam of subatomic particles instead of a beam of light? A:
A:
output: electron microscopes

Q: The heart, blood vessels, and blood make up which system in the body? A:

OPTIONS:
- digestive
- pulminary
- respiratory
- cardiovascular

Answer: cardiovascular

Q: Q: What precious resource allows us to grow food as well as materials we turn into clothing and medicine? A:

OPTIONS:
- petroleum
- mercury
- gasoline
- soil

A:
soil