In the ocean, there are area's where there are very few living things. _______ is the term that when this happens to a natural area.

http://education.nationalgeographic.com/education/encyclopedia/ocean/?ar_a=1

The term you are looking for is "desertification" in the ocean. Desertification refers to the process by which an area becomes barren and devoid of life. However, it is important to note that desertification is typically associated with land ecosystems rather than aquatic systems such as the ocean.

If you are referring to areas in the ocean where there is a low abundance of living organisms, then the term you are looking for is "oceanic desert" or "marine desert." These are areas characterized by low nutrient availability, limited productivity, and consequently, a sparse population of marine organisms.

To find the term, you can start by researching the concept of oceanic deserts or marine deserts. Visit reputable sources such as scientific journals, oceanographic research institutions, or marine biology textbooks. These sources provide detailed explanations and examples of marine desert regions, including the factors that contribute to their formation and the implications for the marine ecosystem. Additionally, you can use search engines and specific keywords related to the topic, like "oceanic desert" or "marine desert," to find relevant information.