None are clear, some are white though and see through but not quite clear. Diamonds are. Any pale colored gem is also sometimes condiered clear.
Some people say that to make sure nobody is touching the patient before pushing the shock button on an AED.
The clearer your urine is, the less concentrated it is. If it is clear, it is almost all water, if it is pale there is less water.
no, the bible is god's holy word