Question

thomas constructs a model by completing the following steps. 1. draw a diagram that shows where oxygen is found on earth, including the atmosphere, bodies of water, land, and living things. 2. draw arrows to show how oxygen moves and changes form from one location to another. 3. label each arrow. thomas has constructed an example of what type of ecological model?
biogeochemical cycle
food web
energy pyramid
geological system

Explanation:

A biogeochemical cycle shows the movement and transformation of a chemical element (like oxygen) through the biosphere, atmosphere, hydrosphere, and lithosphere. Thomas's model, which depicts oxygen's presence and movement across different Earth - components, fits this definition. A food web shows feeding relationships among organisms, an energy pyramid represents energy transfer in an ecosystem, and a geological system pertains to geological processes and structures, none of which match Thomas's model.

Answer:

A. biogeochemical cycle