Pb electrode is in 500ml of 0.01M Pb2+ solution and Sn electrode is in 1L 0.1M Sn2+ solution connected together to form galvanic element. When cell is exhausted, how much concentration is in each half cell.

Please solve it step by step. I am struggling to understand how to solve it. Thank you!

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.