Essay two questions 175 words each APA Standard "dead zone" and "lead in consumer products"

How is a dead zone formed? What do you think could be done to help prevent the formation of these zones?  Your response should be at least 175 words in length.

Summarize the historical use of lead in consumer products. What are the target areas for improving the recycling rate of lead-acid batteries?  Your response should be at least 175 words in length.