*Question*
If energy is used for heating buildings, then what is energy used for?  Answer choices: - heating buildings  - courtship  - reversing time  - Plants growth  - Quality of life  - to stay warm  - destroying matter  - teleportation
**Answer**
heating buildings

*Question*
If abreathing mask is used for keeping aerosols from entering the respiratory system, then what can be used for keeping aerosols from entering the respiratory system?  Answer choices: - goggles  - hydration  - sweating  - hydrogen and oxygen  - breathing masks  - lab coats  - layers of fat  - gloves
**Answer**
breathing masks

*Question*
If otters can be used to make clothing for keeping warm, then what can be used to make clothing for keeping warm?  Answer choices: - cellulose  - bamboo  - heat  - fibrous  - otters  - energy  - chemicals  - Loose
**Answer**
otters

*Question*
If oxygen typifies life, then what typifies life?  Answer choices: - Beauty  - exercise  - Energy  - Color  - recovery  - Movement  - Oxygen  - Energy.
**Answer**
