In a battery cover is placed over the element and sealed to the top of the battery container. This is done________?
Ato reduce evaporation of water from electrolyte
Bto discharge none of the above functions
Cto exclude dirt and foreign matter from the electrolyte
Dto discharge both of the above functions
Correct answer
D. to discharge both of the above functions
Explanation
The correct answer is to discharge both of the above functions.