Which of the following identifies what initially was of most concern to NASA scientists in terms of space food safety? There were no universal quality control programs in place.
Food was not required to be checked for bacteria.
Manufacturers had their own limits of acceptable bacteria.
There was no way to check the food for safety once sealed.

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit