An area protected is a space that is safeguarded from human interference or destruction. In this case, the two crossword solutions are AIRSPACE and WETLAND. AIRSPACE is an area of the atmosphere that is regulated by a country's government and is used for commercial, military, and recreational purposes. WETLAND is an area of land that is saturated with water, either permanently or seasonally, and is home to a variety of plants and animals. Both AIRSPACE and WETLAND are important areas that need to be protected in order to maintain the balance of nature.