The orizont line is where the geosphere meets the ocean.
The biosphere is all living things on earth
The first blank is commodity production and the second blank is education.
<em>hope this helps. :)</em>
<span>Trophic levels refer to where organisms fall on the food chain. Fish from higher trophic levels are often larger and have a higher dollar value at market, resulting in overfishing and the depletion of those species from the wild. If those fish are continued to be consumed at a high level, the loss of predators at the top of the food chain could throw off the balance in the ecosystem.</span>
