Michigan Test for Teacher Certification (MTTC) Secondary Integrated Science Practice test

What is a watershed?

1. A type of soil rich in iron oxide

2. A land area that drains into a single larger body of water

3. A layer of rock that holds water

4. An artificial storage space for water

The correct answer is: A land area that drains into a single larger body of water

A watershed is defined as a land area that drains into a single larger body of water, such as a river, lake, or ocean. This area includes all the streams, rivers, and rainfall that flow into that particular water body. The significance of a watershed lies in its role in the hydrological cycle and the natural processes of water collection, storage, and transportation. It is crucial for understanding local ecosystems, as it influences water quality, wildlife habitats, and land use practices. The concept encompasses the entire surrounding landscape where precipitation collects and flows towards a specific outlet, highlighting the interconnectedness of terrestrial and aquatic systems. This understanding can help in managing water resources, preventing flooding, and maintaining the health of ecosystems. The other options present terms that do not accurately represent the hydrological nature of a watershed, focusing instead on soils, rock formations, or artificial structures.