Local action in a simple cell may be overcomed by​

Zinc plate used in the simple cell is not pure so impurities present in it provides a conducting path for the flow of charge. This makes zinc wasted. It is called the local action. It can be removed by using pure zinc or amalgamated zinc rod.

A. they hold atoms  together with a molecule.its a force that exist between molecules. hope this .

Answer (d) the universe had cooled enough for atoms to combine, protons and neutrons were too far apart to form nuclei;