What is present and still persist in the Peninsula is the endocrine disruptors in freshwater in the northern Antarctic Peninsula region. The peninsula is commonly the remains of mountains of very old durable sandstone formations with low dip, deposited uncomfortably on an ancient underlying granite peneplain.
Endocrine disruptors is a chemical compound that affects the usual functioning of the endocrine system and the reproductive and other biological processes regulated by it. The endocrine system is a complex network of glands and organs. It uses hormones to control and coordinate one's body metabolism, energy level, reproduction, growth and development.
Therefore, the correct answer is as given above. Endocrine disruptor is present and still persist in the peninsula.
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