Why does laughing gas(nitrous oxide)
give a dental patient a euphorically numb feeling? | 5 | | | | |
Head tilted, scratching chin, and looking up @ the sky | 2 | | | | |
Why do humans often shiver after urinating? | 1 | | | | |
Will the earth heal itself? | 0 | | | | |
Why don't food dyes, like those commonly used in sports drinks, color our urine? | 0 | | | | |